Dictionary

flex

1flex

verb \ˈfleks\

: to bend (a body part)

: to move or tighten (a muscle)

Full Definition of FLEX

transitive verb
1
:  to bend especially repeatedly
2
a :  to move muscles so as to cause flexion of (a joint)
b :  to move or tense (a muscle) by contraction
3
:  use, demonstrate <flexing her skills as a singer>
intransitive verb
:  bend
flex one's muscles
:  to demonstrate one's strength <an exaggerated need to flex his political muscles — J. P. Lash>

Examples of FLEX

  1. He flexed the muscles of his right arm.
  2. a material that flexes easily

Origin of FLEX

Latin flexus, past participle of flectere to bend
First Known Use: circa 1521

Rhymes with FLEX

2flex

noun

Definition of FLEX

chiefly British
:  an electric cord

Origin of FLEX

short for flexible cord
First Known Use: 1905

3flex

noun

Definition of FLEX

:  an act or instance of flexing

First Known Use of FLEX

circa 1934

flex

transitive verb \ˈfleks\   (Medical Dictionary)

Medical Definition of FLEX

1
:  to bend especially repeatedly
2
a :  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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