Glossary · Nouns · I
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TermTypeDefinitionClassificationsUpdated
Iron TreenounMWEa small slow-growing deciduous tree of northern Iran having a low domed shapeverified
Ironweednounany of various plants of the genus Vernonia of tropical and warm regions of especially North America that take their name from their loose heads of purple to rose flowers that quickly take on a rusty hueverified
Ironwoodnounhandsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfumeverified
Ironwood TreenounMWEhandsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfumeverified
Irradiationnoun(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulusverified
Irredentanouna region that is related ethnically or historically to one country but is controlled politically by anotherverified
Irredentismnounthe doctrine that irredenta should be controlled by the country to which they are ethnically or historically relatedverified
Irridentanouna region that is related ethnically or historically to one country but is controlled politically by anotherverified
Irridentismnounthe doctrine that irredenta should be controlled by the country to which they are ethnically or historically relatedverified
Irrigationnoun(medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solutionverified
Irritable Bowel SyndromenounMWErecurrent abdominal pain and diarrhea, often alternating with periods of constipationverified
Irruptionnouna sudden violent spontaneous occurrence (usually of some undesirable condition)verified
Isarithmnouna line drawn on a map connecting points having the same numerical value of some variableverified
Ischaemianounlocal anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolismverified
Ischemianounlocal anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolismverified
Ischemic AnoxianounMWEanoxia resulting from slow peripheral circulation (such as follows congestive cardiac failure)verified
Ischemic HypoxianounMWEhypoxia resulting from slow peripheral circulation (such as follows congestive cardiac failure)verified
Isinglassnounany of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leavesverified
Island DispensernounMWEa pump in a service station that draws gasoline from underground storage tanksverified
Islands of LangerhansnounMWEcell clusters in the pancreas that form the endocrine part of that organverified
Isles of LangerhansnounMWEcell clusters in the pancreas that form the endocrine part of that organverified
Islets of LangerhansnounMWEcell clusters in the pancreas that form the endocrine part of that organverified
ISOnounInternational Organization for Standardization, a voluntary, non-treaty, non-government organization, established in 1947, with voting members that are designated standards bodies of participating nations and non-voting observer organizations.Organization
Isoagglutinationnounagglutination of an agglutinogen of one individual by a serum from another individual of the same speciesverified
Isoagglutininnounan antibody produced by one individual that causes agglutination of red blood cells in other individuals of the same speciesverified
Isoagglutinogennounan antigen capable of causing the production of (or reacting with) an isoagglutininverified
Isoantibodynounan antibody that occurs naturally against foreign tissues from a person of the same speciesverified
Isobarnoun(meteorology)an isogram connecting points having equal barometric pressure at a given timeverified
Isobutyl NitritenounMWEa colorless pungent liquid sometimes used as a stimulant drug by drug abusersverified
Isobutylphenyl Propionic AcidnounMWEa nonsteroidal anti-inflammatory and analgesic medicine (trade names Advil and Motrin and Nuprin) used to relieve the pain of arthritis and as an antipyreticverified
Isochronenounan isogram connecting points at which something occurs or arrives at the same timeverified
Isogamynoun(biology) reproduction by the union or fusion of gametes of the same size and structureverified