flex

1
[fleks]
See more synonyms for flex on Thesaurus.com
verb (used with object)
  1. to bend, as a part of the body: He flexed his arms to show off his muscles.
  2. to tighten (a muscle) by contraction.
verb (used without object)
  1. to bend.
noun
  1. the act of flexing.
  2. British.
    1. any flexible, insulated electric cord; an electric cord or extension cord.
    2. Slang.an elastic band, as a garter.
  3. Mathematics. an inflection point.

Origin of flex

1
1515–25; (adj.) < Latin flexus, past participle of flectere to bend, turn; (noun) < Latin flexus act of bending, equivalent to flect(ere) + -tus suffix of v. action

flex

2
[fleks]
adjective
  1. Informal. flexible: a flex program of workers' benefits.

Origin of flex

2
shortening of flexible

flex-

  1. a combining form representing flexible in compound words: flextime.
Also flexi-.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for flex

tilt, tighten, lean, ply, angle, stretch, spring, curve, contract, crook, yield, mold

Examples from the Web for flex

Contemporary Examples of flex

Historical Examples of flex

  • He picked it up and flexed it a bit, as a man might flex a rapier to test its material.

    Islands of Space

    John W Campbell

  • The function of this tendon is to flex the foot at the fetlock.

    Special Report on Diseases of the Horse

    United States Department of Agriculture

  • The Russians flex their 200-men muscles in an enclave in the Pristina airport.

    After the Rain

    Sam Vaknin

  • Her face was perfectly smooth, without a single hint of give or flex.

    Little Brother

    Cory Doctorow

  • When he was lying, he could flex the thigh and the legs slowly and feebly.

    Arteriosclerosis and Hypertension:

    Louis Marshall Warfield


British Dictionary definitions for flex

flex

noun
  1. British a flexible insulated electric cable, used esp to connect appliances to mainsUS and Canadian name: cord
  2. informal flexibility or pliability
verb
  1. to bend or be benthe flexed his arm; his arm flexed
  2. to contract (a muscle) or (of a muscle) to contract
  3. (intr) to work according to flexitime
  4. to test or display (one's authority or strength)

Word Origin for flex

C16: from Latin flexus bent, winding, from flectere to bend, bow
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

Word Origin and History for flex
v.

1520s, probably a back-formation from flexible. Related: Flexed; flexing.

Online Etymology Dictionary, © 2010 Douglas Harper

flex in Medicine

flex

[flĕks]
v.
  1. To bend.
  2. To contract a muscle.
  3. To move a joint so that the parts it connects approach each other.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.