| ICF |
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initialism
- w:inertial confinement fusion, inertial confinement fusion
- w:insulated concrete forms, insulated concrete forms
- w:Internet Connection Firewall, Internet Connection Firewall
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| ideal gas |
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noun - (physics) a hypothetical gas, whose molecules exhibit no interaction, and undergo elastic collision with each other and with the walls of the container
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| ideal gas law |
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noun - (physics) the equation of state of an ideal gas - PV = nRT
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| impedance |
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noun
- (physics) A measure of the opposition to the flow of an alternating current in a circuit; the sum of its resistance, inductive and capacitive reactance
- (physics, usually with "mechanical") a measure of opposition to motion of something subjected to a force.
- (physics, usually with "acoustic" or "sound") the sound pressure divided by the particle velocity and the surface area through which an acoustic wave propagates.
- (context, by analogy, software engineering, usually with "mismatch") a measure of the opposition caused by differences between two paradigms, especially between object oriented development and relational databases
- 1997, Bhavani M. Thuraisingham, Data Management Systems: Evolution and Interoperation (ISBN 0849394937), CRC Press, page 33:
- : Some argue that having mismatch is difficult for programming intensive applications.
- 2002, Jim Melton, Advanced SQL:1999: Understanding Object-Relational and Other Advanced Features (ISBN 1558606777), Morgan Kaufmann, page 353:
- : But the mismatch between SQL and Java was no better than betweel SQL and other languages.
- 2004, Scott W. Ambler, The Object Primer: Agile Model-Driven Development with UML 2.0 (ISBN 1397805218), Cambridge University Press, page 442:
- : Why does a technological mismatch exist?
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| impenetrable |
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adjective - not penetrable
- The fortress is , so it cannot be taken.
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| incandescence |
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noun
- (physics) the emission of visible light by a hot body
- the light so emitted
- (context, by extension) great emotion
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| incandescent |
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adjective
- emitting light as a result of being heated
- shining very brightly
- showing intense emotion, as of a performance etc
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| inclinometer |
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noun
- An instrument that displays the angle of an aircraft relative to the horizon
- An instrument that measures magnetic dip; a dip circle
- A surveying instrument that measures angles of inclination or elevation; a clinometer
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| incoherent |
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adjective
- not coherent
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| incombustible |
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adjective
- Not capable of catching fire and burning; not flammable.
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| indeterminacy principle |
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noun
- (physics) an alternative name for the Heisenberg uncertainty principle
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| induce |
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verb (induc, ing)
- to cause; persuade; force
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| infrared |
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noun
- electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm
adjective
- Having the wavelength in the infrared.
- In the infrared spectrum.
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| infrasonic |
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adjective
- (context, of sound waves) Having frequencies below the human audible range
- (context, of a device) Generating or employing such sound waves
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| infrasonics |
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noun
- the study, and the application of infrasound
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| infrasound |
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noun - (physics) sound waves having frequency below the human audible range (below about 20 Hz)
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| intensity |
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noun (intensities)
- the quality of being intense
- the degree of strength
- (physics) time-averaged energy flux (the ratio of average power to the area through which the power "flows"); irradiance
- (optics) can mean any of radiant intensity, luminous intensity or irradiance
- (astronomy) syn. radiance
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| interfere |
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verb (rfc-level, Verb at L4+ not in L3 POS section)
(interfer, ing)
- (intransitive) to get involved or involve oneself causing disturbance
- I always try not to with other people"s personal affairs.
- (intransitive) (physics) (of waves) to be correlated with each other when overlap, overlapped or superpose, superposed
- Correlated waves to produce interesting patterns, while uncorrelated waves overlap without interfering.
- Where the radio-wave signals of the two radio stations the listener hears nothing but noise.
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| interference |
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noun
- The act of interfering with something, or something that interferes.
- (sports) The illegal obstruction of an opponent in some ball games.
- They were glued to the TV, as the referee called out a fifteen yard penalty for .
- (physics) An effect caused by the superposition of two systems of waves, such as a distortion on a broadcast signal due to atmospheric or other effects.
- They wanted to the game on TV, but there was too much to even make out the score on the tiny screen.
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| intermediate vector boson |
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noun - (particles) Any of the three fundamental particles (the two W-bosons and the Z-boson) that transmit the weak nuclear force and have a mass about 100 times that of a proton.
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| intramolecular |
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adjective - (chemistry),(physics) between different parts of the same molecule
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| Ionic |
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proper noun
- A sub-dialect of the Attic-Ionic dialectal group of Ancient Greek consisting of Old Ionic and New Ionic.
adjective
- of or related to Ionians
- (architecture) of an order of classical Greek architecture; the Ionic order
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| ionize |
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verb (ioniz, ing)
- (context, chemistry, physics) To dissociate atoms or molecules into electrically charged species; to be thus dissociated.
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| ionizing radiation |
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noun
- high-energy radiation that is capable of causing ionization in substances through which it passes; also includes high-energy particles
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| irradiate |
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verb (irradiat, ing)
- (transitive) To throw rays of light upon; to illuminate; to brighten; to adorn with luster.
- Thy smile irradiates yon blue fields. --Sir W. Jones.
- (transitive) To enlighten intellectually; to illuminate; as, to irradiate the mind.
- (transitive) To animate by heat or light.
- (transitive) To radiate, shed, or diffuse.
- A splendid faade,... irradiating hospitality. --H. James.
- (intransitive) To emit rays; to shine.
- (transitive) To treat (food) with ionizing radiation in order to destroy bacteria
adjective
- illuminate, Illuminated; irradiated; made brilliant or splendid.
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| irradiation |
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noun - act of irradiating, or state of being irradiated.
- illumination; irradiance; brilliancy.
- fig.: mental light or illumination.
- the apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.
- a process of sterilisation whereby radiation is passed through a bag containing food, utensils, etc., to sterilise the contents.
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| isobar |
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noun
- (Weather) A line drawn on a map or chart connecting places of equal or constant pressure.
- In meteorology, it most often refers to a line drawn through all points of equal atmospheric pressure along a given reference surface, such as a constant height surface (notably mean-sea-level on surface charts); the vertical plane of a synoptic cross section, or a map of the air unaffected by surface heating or cooling. The pattern of isobars has always been a main feature of surface chart analysis. Until recently it was standard procedure to draw isobars at 3-millibar intervals. However, the advent of constant pressure charts for upper-air analysis has brought about the use of 4-millibar intervals to simplify the conversion from surface isobars to 1,000-millibar contour lines.
- (physics) either of two nuclides of different elements having the same mass number
- thermodynamics. A set of points or conditions at constant pressure
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| isobaric |
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adjective
- having the same pressures, masses, or densities
- (physics) (of a thermodynamic process) having a constant pressure throughout
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| isoelectronic |
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adjective - (chemistry) (of two compounds) having the same electronic configuration although consisting of different elements
- Ammonia borane is with ethane.
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| isomer |
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noun
- (chemistry) Any of two or more compounds with the same molecular formula but with different structure.
- (physics) Any of two or more nuclei with the same mass number and atomic number but with different radioactive properties.
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| isomerism |
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noun - (chemistry) the phenomenon of the existence of isomers - the existence of different substances with the same molecular formulae
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| isometric |
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noun
- A line connecting isometric points.
adjective
- Of, or exhibiting equality in dimensions
- Of, or being a geometric system of three equal axes lying at right angles to each other (especially in crystallography).
- (physiology) Of or involving muscular contraction against resistance in which the length of the muscle remains the same
- (physics) (of a thermodynamic process) taking place at constant volume because of being confined by rigid boundaries
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| isostasy |
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noun - (geology) the buoyancy of the Earth's continents floating on the magma
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| isotherm |
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noun - A line of equal or constant temperature on a graph or chart, such as a weather map.
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| isotone |
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noun - (physics) either of a number of nuclides of different elements that have the same number of neutrons
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| isotropic |
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adjective - (physics) having properties that are identical in all directions; exhibiting isotropy
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