ran·dom
(răn′dəm)adj.1. Having no specific pattern, purpose, or objective:
random movements. See Synonyms at
chance.
2. Mathematics & Statistics Of or relating to a type of circumstance or event that is described by a probability distribution.
3. Of or 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.
Idiom: at random Without a governing design, method, or purpose; unsystematically: chose a card at random from the deck.
[From at random, by chance, at great speed, from Middle English randon, random, speed, violence, surge, from Old French randon, from randir, to run, probably from Frankish *rand, border, margin (as of a field, used as a racecourse); akin to German Rand, edge.]
ran′dom·ly adv.
ran′dom·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
random
(ˈrændəm) adj1. lacking any definite plan or prearranged order; haphazard: a random selection.
2. (Statistics)
statistics a. having a value which cannot be determined but only described probabilistically: a random variable.
b. chosen without regard to any characteristics of the individual members of the population so that each has an equal chance of being selected: random sampling.
3. informal (of a person) unknown: some random guy waiting for a bus.
nat random in a purposeless fashion; not following any prearranged order
[C14: from Old French randon, from randir to gallop, of Germanic origin; compare Old High German rinnan to run]
ˈrandomly adv
ˈrandomness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ran•dom
(ˈræn dəm)
adj. 1. occurring or done without definite aim, reason, or pattern: random examples.
2. Statistics. of or characterizing a process of selection in which each item of a set has an equal probability of being chosen.
3. Building Trades. a. (of building materials) lacking uniformity of dimensions: random shingles.
b. (of ashlar) laid without continuous courses.
c. constructed or applied without regularity: random bond.
adv. 4. Building Trades. without uniformity: random-sized slates.
Idioms: at random, without regard to rules, schedules, etc.; haphazardly.
[1275–1325; Middle English raundon, random < Old French randon, derivative of randir to gallop < Germanic]
ran′dom•ly, adv.
ran′dom•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.