[ran-duh m] /ˈræn dəm/
proceeding, made, or occurring without definite aim, reason, or pattern:
the random selection of numbers.
Statistics. of or characterizing a process of selection in which each item of a set has an equal probability of being chosen.
Chiefly British. 3 (def 7b).
Building Trades. without uniformity:
at random, without definite aim, purpose, method, or adherence to a prior arrangement; in a haphazard way:
Contestants were chosen at random from the studio audience.
lacking any definite plan or prearranged order; haphazard: a random selection
(informal) (of a person) unknown: some random guy waiting for a bus
at random, in a purposeless fashion; not following any prearranged order
“having no definite aim or purpose,” 1650s, from at random (1560s), “at great speed” (thus, “carelessly, haphazardly”), alteration of Middle English noun randon “impetuosity, speed” (c.1300), from Old French randon “rush, disorder, force, impetuosity,” from randir “to run fast,” from Frankish *rant “a running” or some other Germanic source, from Proto-Germanic *randa (cf. Old High German rennen “to run,” Old English rinnan “to flow, to run;” see run (v.)).
In 1980s U.S. college student slang it began to acquire a sense of “inferior, undesirable.” (A 1980 William Safire column describes it as a college slang noun meaning “person who does not belong on our dormitory floor.”) Random access in reference to computer memory is recorded from 1953. Related: Randomly; randomness.
see: at random
- Non-rapid eye movement
non-rapid eye movement non-rap·id eye movement (nŏn-rāp’ĭd) n. Abbr. NREM Slow oscillation of the eyes during the portion of the sleep cycle when no dreaming occurs.
[rey-tuh-buh l] /ˈreɪ tə bəl/ adjective 1. capable of being or appraised. 2. proportional: ratable distribution of wealth. /ˈreɪtəbəl/ adjective 1. able to be rated or evaluated 2. (Brit) (of property) liable to payment of rates adj. also rateable, c.1500, from rate (v.2) + -able.
[rash-uh-nl, rash-nl] /ˈræʃ ə nl, ˈræʃ nl/ adjective 1. agreeable to reason; reasonable; sensible: a rational plan for economic development. 2. having or exercising reason, sound judgment, or good sense: a calm and rational negotiator. 3. being in or characterized by full possession of one’s reason; sane; lucid: The patient appeared perfectly rational. 4. endowed […]
[rash-uh-nl-iz-uh m] /ˈræʃ ə nlˌɪz əm/ noun 1. the principle or habit of accepting reason as the supreme authority in matters of opinion, belief, or conduct. 2. Philosophy. 3. Theology. the doctrine that human reason, unaided by divine revelation, is an adequate or the sole guide to all attainable religious truth. 4. Architecture. (often initial […]