muscularity

From muscular +‎ -ity.

muscularity (countable and uncountable, plural muscularities)

musculature
The muscularity in his forearm was visible as he flexed his fingers.
(bodybuilding) The degree to which the muscles in a body part are developed.
Focussed exercise brought out the muscularity in her calves.
The use of strength.
- 2018 October 13, Judith Taylor, “I’m a woman who imitated the swagger of an entitled white male — and it got results”, in The Star:
  I won’t promote the silencing of dissent through verbal muscularity.

degree to which the muscles in a body part are developed

English