D defs.my
Entry 1 sense Webster, 1913

Muscling

/mŭs'-əl-ĭng/ · Mus·cling · IPA /mˈʌsəlɪŋ/
01 n. Exhibition or representation of the muscles.
  1. 1.
    Exhibition or representation of the muscles.(Fine Arts) [R.]
    “A good piece, the painters say, must have good muscling, as well as coloring and drapery.” — Shaftesbury.