| magnetopause |
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noun
- the boundary between the Earth's magnetosphere and the sun's plasma
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| magnetosphere |
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noun - (physics) the comet-shaped region around the Earth, shaped by the solar wind and the Earth's magnetic field, in which charged particles are trapped or deflected
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| manger |
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noun
- A trough for animals to eat from.
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| mare |
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noun
- An adult female horse.
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| Mars |
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proper noun
- The Roman god of war.
- The fourth planet in the solar system. Symbol: �
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| mean solar day |
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noun
- the average length of a solar day, used for practical timekeeping
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| Mensa |
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proper noun
- w:Mensa International, Mensa International; an organisation for people with very high IQs.
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| mercurial |
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noun
- A chemical containing mercury.
adjective
- Relating to the Roman god Mercury.
- Relating to the planet Mercury.
- Having characteristics of the Roman god Mercury, such as speed.
- contain, Containing the element mercury.
- volatile, Volatile.
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| Mercury |
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proper noun
- The Roman god associated with speed, sometimes used as a messenger. He wore winged sandals. Mercury corresponded to the Greek god Hermes.
- The planet in the solar system with the closest orbit to the Sun, named after the god; represented by �.
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| meridian |
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noun - An imaginary great circle on the Earth's surface, passing through the geographic poles.
- Either half of such a great circle, all points of which have the same longitude.
- (astronomy) A great circle passing through the poles of the celestial sphere and the zenith for a particular observer.
- (mathematics) A similar line on any general surface of revolution.
- Any of the longitudinal pathways on the body along which the acupuncture points are distributed.
- The highest point or state of consciousness and enlightenment achievable by a human.
adjective - Meridional; relating to a meridian.
- Relating to noon
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| meteoric |
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adjective
- Of, pertaining to, or originating from a meteor.
- Like a meteor in speed, brilliance, or ephemeralness.
- His rise to power was followed by a slow, lackluster career at the top.
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| meteorite |
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noun
- A metallic or stony object or body that is the remains of a meteor
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| meteoroid |
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noun - (astronomy) A relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere
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| microscope |
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noun
- An optical instrument used for observing small objects.
- Any instrument for imaging very small objects (such as an electron microscope).
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| Microscopium |
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proper noun
- (constellation) A faint constellation of the southern spring sky, said to resemble a microscope. It lies south of the constellation of Capricornus.
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| Mira |
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proper noun
- (star) A binary star in the constellation Cetus; Omicron (ο) Boí¶tis. The system contains a variable red giant and a white dwarf. Its brightness varies from a magnitude 2 at its brightest to a magnitude 10 at its dimmest.
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| Miranda |
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proper noun
- (given name, female)
- The smallest of Uranus' moons.
verb
- To read somebody their rights on arrest as set out in Miranda v Arizona.
- Has the suspect been Mirandaed?
- McCarthy? provided that he was Mirandaed. I told her to videotape or to have someone videotape the conversation. http://www.courts.state.me.us/opinions/ 2003%20documents/03me40mc.pdf
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| Monoceros |
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proper noun
- (constellation) A winter constellation of the northern sky, said to resemble a unicorn. It lies amid the Milky Way, just east of the constellation Orion.
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| month |
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noun
- A period into which a year is divided, historically based on the phases of the moon. In the Gregorian calendar there are twelve months: January, February, March, April, May, June, July, August, September, October, November and December.
- A period of 30 days, 31 days, or some alternation thereof.
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| Moon |
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proper noun
- The Earth's moon; the sole natural satellite of the Earth, represented in astronomy and astrology by �.
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| moonrise |
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noun
- when the moon begins to rise.
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| moonscape |
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noun
- A view of an area of the Moon
- (context, by extension) A desolate or devastated landscape
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| moonset |
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noun
- The setting of the moon below the horizon
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| morning star |
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noun (plural morning stars)
- The planet Venus as seen in the eastern sky at dawn.
- The evening star is the morning star. (Hesperus is Phosphorus.)
- (Weapon) A weapon consisting of a heavy ball set with spikes, attached to a staff and NOT suspended from one by a chain. The Morning star is a rigid weapon, sometimes called a holy water sprinkler. It is frequently confused with the flail. The flail is any weapon with a joint allowing an end to swing freely, such as a ball and chain.
- Quotations
- 1786: Contrivances like these, except that the balls were armed with spikes, were long carried by the pioneers of the trained bands, or city militia, they are generally called morning stars. — Francis Grose, A Treatise on Ancient Armour and Weapons, page 55.
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| Musca |
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proper noun
- (constellation) An autumn constellation of the southern sky, said to resemble a fly. It lies between the constellations of Carina and Apus.
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