BICEPS AND TRICEPS

 bicep

noun [ C ]   non-standard

UK  /ˈbaɪ.sep/ US  /ˈbaɪ.sep/

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another word for biceps : the large muscle at the front of the upper arm:

He has a tattoo of a rose on his bicep.

tricep

noun [ C ]   non-standard

UK  /ˈtraɪ.sep/ US  /ˈtraɪ.sep/

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another word for triceps :the large muscle at the back of the upper arm:

He had ripped his tricep.

The back of your arm, the tricep muscle, can be a little wobbly because you rarely use it in daily life.

BICEPS AND TRICEPS

The biceps muscle lies on top of the humerus and is used to bend and curl the arm. The triceps muscle lies underneath the humerus and is used to straighten the arm.

contract

verb

uk 

 /kənˈtrækt/ us 

 /kənˈtrækt/

contract verb (BECOME SMALLER)

 

[ I or T ]

to make or become shorter or narrower or generally smaller in size:

contract to In spoken English, "do not" often contracts to "don't".

As it cooled, the metal contracted.