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1

flex

play
verb \ˈfleks\

Simple Definition of flex

  • : to bend (a body part)

  • : to move or tighten (a muscle)

Source: Merriam-Webster's Learner's Dictionary

Full Definition of flex

  1. transitive verb
  2. 1 :  to bend especially repeatedly

  3. 2 a :  to move muscles so as to cause flexion of (a joint) b :  to move or tense (a muscle) by contraction

  4. 3 :  use, demonstrate <flexing her skills as a singer>

  5. intransitive verb
  6. :  bend

flex one's muscles

  1. :  to demonstrate one's strength <an exaggerated need to flex his political muscles — J. P. Lash>

Examples of flex in a sentence

  1. He flexed the muscles of his right arm.

  2. a material that flexes easily



Origin and Etymology of flex

Latin flexus, past participle of flectere to bend


First Known Use: circa 1521


2

flex

noun

Definition of flex

chiefly British

  1. :  an electric cord



Origin and Etymology of flex

short for flexible cord


First Known Use: 1905


3

flex

noun

Definition of flex

  1. :  an act or instance of flexing



Circa 1934

First Known Use of flex

circa 1934


FLEX Defined for Kids

flex

play
verb \ˈfleks\

Definition of flex for Students

flexed

flexing

  1. 1 :  to bend especially again and again <Can you flex your fingers?>

  2. 2 :  to move or tense (a muscle)



Word Root of flex

The Latin word flectere, meaning “to bend” or “to curve,” and its form flexus give us the roots flect and flex. Words from the Latin flectere have something to do with bending or curving. To flex is to cause something, such as a muscle, to curve or bend. Something flexible can be bent without breaking. To deflect, or turn aside, is to bend the direction of something. To reflect is to bend an image back to the person looking at a mirror or other shiny surface.


Medical Dictionary

flex

play
transitive verb \ˈfleks\

Medical Definition of flex

  1. 1:  to bend especially repeatedly

  2. 2a:  to move muscles so as to cause flexion of (a joint) <stretching and flexing his knees>b:  to move or tense (a muscle or muscles) by contraction <flexed their biceps>




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