n.
  - a band of fibrous tissue in the body that has the ability to contract, producing movement in or maintaining the position of a part of the body.
 - physical power. 
▸political or economic power.
 
v.
 informal  - 
(muscle in/into)
 force one's way into (another's affairs).
 - chiefly N. Amer. move (an object) by use of physical strength.
 
 
  Derivative
  
    - -muscled adj.
  - muscleless adj.
  - muscly adj. 
(musclier, muscliest)
. 
   
  Etymology
  ME: from Fr., from L. musculus, dimin. of mus ‘mouse’ (some muscles being thought to be mouse-like in form).