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cavy

(Encyclopedia) cavycavykāˈvē [key], name for 14 species of South American rodents of the family Caviidae, including the domestic guinea pig. The wild cavies are usually small, rounded, and tailless,…

pyrimidine

(Encyclopedia) CE5 Pyrimidines found in deoxyribonucleic acid (DNA) pyrimidinepyrimidinepīrĭmˈĭdēnˌ [key], type of organic base found in certain coenzymes and in the nucleic acids of plant and…

mitosis

(Encyclopedia) CE5 Mitosis in a body cell of an animal mitosismitosismītōˈsĭs, mĭ– [key], process of nuclear division in a living cell by which the carriers of hereditary information, or the…

fats and oils

(Encyclopedia) fats and oils, group of organic substances that form an important part of the diet and also are useful in many industries. The fats are usually solid, the oils generally liquid at…

ameba

(Encyclopedia) ameba or amoebaamoebaboth: əmēˈbə [key], common name for certain one-celled organisms belonging to the phylum Sarcodina of the kingdom Protista. Amebas were previously classified as…

sacrifice

(Encyclopedia) sacrifice [Lat. sacrificare=to make holy], a type of religious offering, or gift to a superior or supreme being, in which the offering is consecrated through its destruction. The…

fumaric acid

(Encyclopedia) fumaric acidfumaric acidfy&oomacr;mărˈĭk [key] or trans-butenedioic acid, HO2CCH=CHCO2H, unsaturated dicarboxylic acid that melts at 287℃. Maleic acid, or cis-butenedioic acid, is…

globulin

(Encyclopedia) globulin, any of a large family of proteins of a spherical or globular shape that are widely distributed throughout the plant and animal kingdoms. Many of them have been prepared in…

hydrogen sulfide

(Encyclopedia) hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is…

hoe

(Encyclopedia) hoe, usually a flat blade, variously shaped, set in a long wooden handle and used primarily for weeding and for loosening the soil. It was the first distinctly agricultural implement.…