18-letter words containing ral
- parallactic motion — the apparent motion of stars due to the earth's orbital motion.
- parallel computing — parallel processing
- parallel evolution — the independent development of closely corresponding adaptive features in two or more groups of organisms that occupy different but equivalent habitats, as marsupial mammals in Australia and placental mammals on other continents.
- parallel importing — the importing of certain goods, esp pharmaceutical drugs, by dealers who undersell local manufacturers
- parallel processor — (parallel) A computer with more than one central processing unit, used for parallel processing.
- parallel reduction — A form of applicative order reduction in which all redexes in an expression are reduced simultaneously. Variants include parallel outermost reduction and lenient reduction. See normal order reduction.
- parallel resonance — the resonance that results when circuit elements are connected with their inductance and capacitance in parallel, so that the impedance of the combination rises to a maximum at the resonant frequency
- parallelogram rule — a rule for finding the resultant of two vectors by constructing a parallelogram with two adjacent sides representing the magnitudes and directions of the vectors, the diagonal through the point of intersection of the vectors representing their resultant
- paraurethral gland — any of a group of vestigial glands located in the posterior wall of the urethra in women.
- pectoral sandpiper — an American sandpiper, Calidris melanotos, the male of which, when courting, inflates its chest conspicuously.
- postmaster general — the executive head of the postal system of a country.
- postviral syndrome — debilitating condition occurring as a sequel to viral illness
- rural municipality — any lightly settled area in Canada lacking a local elected government and administered directly by a provincial government.
- structural formula — a chemical formula showing the linkage of the atoms in a molecule diagrammatically, as H–O–H.
- structural geology — the branch of geology dealing with the structure and distribution of the rocks that make up the crust of the earth. Also called tectonics. Compare structure (def 7a).
- take sth literally — If you take something literally, you think that a word or expression is being used with its most simple or basic meaning.
- temporal summation — the act or process of summing.
- the general public — the people in a society; people in general
- the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
- ultralow frequency — an electromagnetic wave with a frequency between 300 and 3000 hertz. Abbreviation: ULF, ulf.
- unilateral neglect — a symptom of brain damage in which a person is unaware of one side of his or her body and of anything in the external world on the same side
- zorrilla (y moral) — Joˈsé (hɔˈsɛ ) ; h^ōseˈ) 1817-93; Sp. poet & playwright