[ ran-duhm ]
/ 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.
- (of building materials) lacking uniformity of dimensions: random shingles.
- (of ashlar) laid without continuous courses.
- constructed or applied without regularity: random bond.
- unknown, unidentified, or suspiciously out of place: A couple of random guys showed up at the party.
- odd or unpredictable, often in an amusing way: my totally random life.
something that is random, or a random state or condition: different statistical methods used to estimate randoms.
- a person or thing that is unknown, unidentified, or suspiciously out of place.
- a person or thing that is odd or unpredictable.
Chiefly British. bank3(def 7b).
Building Trades. without uniformity: random-sized slates.
Words nearby random
Idioms for random
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.
Origin of random
1275–1325; Middle English raundon, random < Old French randon, derivative of randir to gallop < Germanic
OTHER WORDS FROM random
ran·dom·ly, adverbran·dom·ness, nounnon·ran·dom, adjectivenon·ran·dom·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for nonrandom
/ (ˈrændəm) /
lacking any definite plan or prearranged order; haphazarda random selection
- having a value which cannot be determined but only described probabilisticallya random variable
- chosen without regard to any characteristics of the individual members of the population so that each has an equal chance of being selectedrandom sampling
informal (of a person) unknownsome random guy waiting for a bus
at random in a purposeless fashion; not following any prearranged order
Derived forms of randomrandomly, adverbrandomness, noun
Word Origin for random
C14: from Old French randon, from randir to gallop, of Germanic origin; compare Old High German rinnan to run
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for nonrandom
[ răn′dəm ]
Relating to a type of circumstance or event that is described by a probability distribution.
Relating to an event in which all outcomes are equally likely, as in the testing of a blood sample for the presence of a substance.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Idioms and Phrases with nonrandom
see at random.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.