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neutron star

(Encyclopedia) neutron star, extremely small, extremely dense star, with as much as double the sun's mass but only a few miles in radius, in the final stage of stellar evolution. Astronomers Baade…

lysine

(Encyclopedia) CE5 lysinelysinelīˈsēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is one of…

deportation

(Encyclopedia) deportation, expulsion of an alien from a country by an act of its government. The term is not applied ordinarily to sending a national into exile or to committing one convicted of…

quarrying

(Encyclopedia) quarrying, open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been…

Schelling, Friedrich Wilhelm Joseph von

(Encyclopedia) Schelling, Friedrich Wilhelm Joseph vonSchelling, Friedrich Wilhelm Joseph vonfrēˈdrĭkh vĭlˈhĕlm yōˈzĕf fən shĕˈlĭng [key], 1775–1854, German philosopher. After theological study at…

phase, in astronomy

(Encyclopedia) CE5 Phases of the moon phase, in astronomy, the measure of how much of the illuminated surface of a planet or satellite can be seen from a point at a distance from that body; the…

pain

(Encyclopedia) pain, unpleasant or hurtful sensation resulting from stimulation of nerve endings. The stimulus is carried by nerve fibers to the spinal cord and then to the brain, where the nerve…

tryptophan

(Encyclopedia) CE5 tryptophantryptophantrĭpˈtəfăn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is…

confession

(Encyclopedia) confession, in law, the formal admission of criminal guilt, usually obtained in the course of examination by the police or prosecutor or at trial. For a confession to be admissible as…

giraffe

(Encyclopedia) giraffe, African ruminant mammal, genus Giraffa, living in open savanna S of the Sahara. Giraffes have historically been considered to be one species, G. camelopardalis, with a number…