Calf

/kæf/ noun

Definition

The back part of your lower leg, the muscle that helps you walk and run.

Etymology

This word comes from an old word meaning 'young cow' because this muscle is thick and strong like a baby cow.

Kelly Says

Your calf is the strong muscle on the back of your leg below your knee! It helps you jump high, run fast, and stand on your tippy-toes to reach tall things.

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