All Words Glossary

Glossary of Physiology Terms
beginning with letter I
Browse the Physiology Glossary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 

impotence Tweet Definition of impotence Like Definition of impotence on Facebook
  1. powerlessness, Powerlessness.
  2. erectile dysfunction, Erectile dysfunction.
impotent Tweet Definition of impotent Like Definition of impotent on Facebook
  1. Lacking physical strength or vigor; weak.
  2. Lacking in power, as to act effectively; helpless: "Technology without morality is barbarous; morality without technology is impotent" (Freeman J. Dyson).
  3. Incapable of sexual intercourse, often because of an inability to achieve or sustain an erection.
  4. Sterile (used of males).
  5. (obsolete) Lacking self-restraint.
impregnate Tweet Definition of impregnate Like Definition of impregnate on Facebook
verb (impregnat, ing)
  1. (transitive) To cause to become pregnant.
  2. (transitive) To fertilize.
  3. (transitive) To saturate, or infuse.
  4. (transitive) To fill pores or spaces with a substance.
It is recommended to new shoes before wearing them.
impulse Tweet Definition of impulse Like Definition of impulse on Facebook
  1. A wish or urge, particularly a sudden one.
The to learn drove me to study night and day.
When I saw the new dictionary, I couldn't resist the to browse through it.
  1. (physics) The integral of force over time.
The total from the impact will depend on the kinetic energy of the bullet.
inseminate Tweet Definition of inseminate Like Definition of inseminate on Facebook
verb (inseminat, ing)
  1. To sow; to impregnate.
insomniac Tweet Definition of insomniac Like Definition of insomniac on Facebook
  1. One who suffers an inability or difficulty sleeping; a sufferer from insomnia.
  1. Suffering from or pertaining to insomnia.
inspiration Tweet Definition of inspiration Like Definition of inspiration on Facebook
  1. The act of inspiring or breathing in; breath; specif. (Physiol.), the drawing of air into the lungs, accomplished in mammals by elevation of the chest walls and flattening of the diaphragm; -- the opposite of expiration.
  2. The act or power of exercising an elevating or stimulating influence upon the intellect or emotions; the result of such influence which quickens or stimulates; as, the inspiration of occasion, of art, etc.
  3. A supernatural divine influence on the prophets, apostles, or sacred writers, by which they were qualified to communicate moral or religious truth with authority; a supernatural influence which qualifies men to receive and communicate divine truth; also, the truth communicated.
Intercourse Tweet Definition of Intercourse Like Definition of Intercourse on Facebook
proper noun 
  1. A particular town in the Commonwealth of Pennsylvania in the United States
intoxicate Tweet Definition of intoxicate Like Definition of intoxicate on Facebook
verb (intoxicat, ing)
  1. To stupefy by dope, doping with chemical substances such as alcohol.
intoxication Tweet Definition of intoxication Like Definition of intoxication on Facebook
  1. A poisoning, as by a spirituous or a narcotic substance.
  2. The state of being intoxicated or drunk; inebriation; ebriety; drunkenness; the act of intoxicating or making drunk.
  3. A high excitement of mind; an elation which rises to enthusiasm, frenzy, or madness.
invaginate Tweet Definition of invaginate Like Definition of invaginate on Facebook
verb (invaginat, es)
  1. (context, medicine, surgery) To fold up or enclose into a sheath-like or pouch-like structure, either naturally or as part of a surgical procedure.
  2. (medicine) To turn or fold inwardly.
  3. (medicine) Infolding to create a hollow space where none had existed, as with a gastrula forming from a blastula.
involuntary Tweet Definition of involuntary Like Definition of involuntary on Facebook
  1. Without intention; unintentional.
He involuntarily overheard the conversation.
  1. Not voluntary or willing; contrary or opposed to explicit will or desire; unwilling.
He found himself the witness in the trial.
involution Tweet Definition of involution Like Definition of involution on Facebook
  1. entanglement; a spiralling inwards; intricacy
  • 1968: "Gomez," said the mortician, "is an expert only on the involutions of his own rectum." " Anthony Burgess, Enderby Outside
    1. (mathematics) An endofunction whose square is equal to the identity function; a function equal to its inverse.
irregular Tweet Definition of irregular Like Definition of irregular on Facebook
  1. something nonstandard; something that breaks the series
irritability Tweet Definition of irritability Like Definition of irritability on Facebook
  1. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
  2. (physiology) A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways.
  3. (medicine) A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli.
irritable Tweet Definition of irritable Like Definition of irritable on Facebook
  1. capable of being irritated
  2. easily exasperated or excited
  3. responsive to stimuli
itch Tweet Definition of itch Like Definition of itch on Facebook
  1. A sensation felt on an area of the skin that causes a person or animal to tend to want to scratch.
  2. A desire or want.
verb (itch, es)
  1. (intransitive) To feel the need to scratch.
  2. (intransitive) To want or desire.
He started learning to drive and he has been itching for opportunities to practice ever since.
  1. (transitive) To cause to feel an itch.
  2. (context, transitive, colloquial) To scratch or rub so as to relieve an itch.
    • 2002: M D Huddleston, Missing Paige
    • :"What makes you suspect him?" Max asked as he itched his neck.
    • 2003: Ray Emerson, The Riddle of Cthulhu
    • :Ulysses thumped his side and itched his back side, then slipped into his car.
    • 2004: Philip Smucker, Al Qaeda's Great Escape: The Military and the Media on Terror's Trail
    • :But when we asked more about the famous man whose specter still commanded the heights, the guard just sneered at me, pointed his gun back toward the road with one hand, and itched his chin with the other.

Browse the Dictionary

  Words Starting With:
  Words Ending With:
  Words Containing:
  Words That Match:

 Translate Into:
Dutch   French   German
Italian   Spanish
    Show results per page.

Allwords Copyright 1998-2022 All rights reserved.