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Euglenophyta

(Encyclopedia) EuglenophytaEuglenophytay&oomacr;ˌglənŏfˈətə [key], small phylum (division) of the kingdom Protista, consisting of mostly unicellular aquatic algae. Most live in freshwater; many…

mountain beaver

(Encyclopedia) mountain beaver, stout, short-limbed North American rodent, Aplodontia rufa, not closely related to the true beaver. Also called sewellel beaver after the Chinook word for a robe made…

verdict

(Encyclopedia) verdict, in law, official decision of a jury respecting questions of fact that the judge has laid before it. In the United States, verdicts must be unanimous in federal courts;…

valine

(Encyclopedia) CE5 valinevalinevălˈēn [key], organic compound, one of the 22 α-amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is one of…

adrenocorticotropic hormone

(Encyclopedia) adrenocorticotropic hormoneadrenocorticotropic hormoneədrēˈnōkôrˌtəkōtrŏpˈĭk [key], polypeptide hormone secreted by the anterior pituitary gland. Its chief function is to stimulate the…

videodisc

(Encyclopedia) videodisc or videodisk, disk used with a special player and television to reproduce both pictures and sound. A videodisc player cannot record television programs off the air for later…

political action committee

(Encyclopedia) political action committee (PAC), U.S. organization formed by a corporation, labor union, or association to raise money for political activity. Funds can be gathered by voluntary…

barley

(Encyclopedia) barley, annual cereal plant (Hordeum vulgare and sometimes other species) of the family Poaceae (grass family), cultivated by humans probably as early as any cereal. It was known to…

Shannon

(Encyclopedia) Shannon, principal river of the Republic of Ireland and longest (c.240 mi/390 km) in the British Isles. It rises near Cuilcagh Mt., NW Co. Cavan, and flows S through the Central Plain…

narcolepsy

(Encyclopedia) narcolepsy, a sleep disorder characterized by excessive daytime sleepiness and recurring unwanted episodes of sleep (“sleep attacks”). People with narcolepsy may abruptly fall asleep…