muscle

UK: ˈmʌs.əl | US: ˈmʌs.əl

Definition
  1. n. a band or bundle of fibrous tissue in a human or animal body that contracts to produce movement

  2. n. physical power or strength

  3. n. (figurative) influence or authority

Structure
mus <mouse>cle <diminutive suffix>mus <mouse>cle <diminutive suffix>
Etymology

The word "muscle" traces back to Latin musculus ("little mouse"), a playful analogy coined by ancient anatomists who observed that rippling muscles under the skin resembled scurrying mice. This vivid imagery persisted through Old French muscle into Middle English, retaining both the biological and metaphorical senses of strength.

Examples
  1. Regular exercise helps build strong muscles.

  2. He strained a muscle while lifting the heavy box.

  3. The political party flexed its muscle to pass the new law.

  4. Her arm muscles tensed as she prepared to throw the ball.

  5. Despite his age, he still has considerable muscle.