Flex is defined as to bend or tense a muscle or body part, or to show the strength of something.(verb)
The definition of a flex is a British term for an electrical wire that is bendable and has insulation.(noun)
An example of a flex is a twisted pair.
See flex in Webster's New World College Dictionary
transitive verb, intransitive verb
Origin: < L flexus, pp. of flectere, to bend, curve
Origin: < flexible
See flex in American Heritage Dictionary 4
verb flexed, flex·ing, flex·es verb, transitive
Origin: Latin flectere, flex-, to bend.
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