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macromolecule

(Encyclopedia)macromolecule, term that may refer either to a crystal such as a diamond, in which the atoms are identical and held by covalent bonds (see chemical bond) of equal strength, or to one of the units that...

dividend

(Encyclopedia)dividend, that part of the net earnings of a corporation that is distributed to its stockholders. Dividend disbursements are based on a percentage of the par value of the stock or are a certain sum pe...

bonus

(Encyclopedia)bonus, extra amount in money, bonds, or goods over what is normally due. The term is applied especially to payments to employees either for production in excess of the normal (wage incentive) or as a ...

Cardiff

(Encyclopedia)Cardiff kärˈdĭf [key], Welsh Caerdydd, city and county (2020 est. pop. 357,200), S Wales, ...

Mulliken, Robert Sanderson

(Encyclopedia)Mulliken, Robert Sanderson, 1896–1986, American chemist, b. Newburyport, Mass., Ph.D. Univ. of Chicago, 1921. Mulliken taught at New York Univ. from 1926 to 1928 and then at the Univ. of Chicago fro...

Warren, J. Robin

(Encyclopedia)Warren, J. Robin (John Robin Warren), 1937–, Australian pathologist, grad. Univ. of Adelaide (M.B., B.S., 1961). He spent most of his career (1968–99) as a pathologist at the Royal Perth Hospital....

alkene

(Encyclopedia)CE5 Alkenes alkene ălˈkēn [key], any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon double bonds (see chemical bond). Alkenes with only one double bond h...

trypsin

(Encyclopedia)trypsin, enzyme that acts to degrade protein; it is often referred to as a proteolytic enzyme, or proteinase. Trypsin is one of the three principal digestive proteinases, the other two being pepsin an...

isoprene

(Encyclopedia)isoprene or 2-methyl-1,3-butadiene īˈsəprēn, byo͞oˌtədīˈēn [key], colorless liquid organic compound. It is a hydrocarbon, and is insoluble in water but soluble in many organic solvents; it b...

Spaulding, Elbridge Gerry

(Encyclopedia)Spaulding, Elbridge Gerry, 1809–97, U.S. banker and politician, b. Locke (now Summer Hill), N.Y. A lawyer practicing in Buffalo, N.Y., after 1834, he gradually became a banker there and was active i...