muscle memory UK /ˌmʌsl̩ ˈmɛm(ə)ɹi/US /ˈmʌs(ə)l ˈmɛmɚi/ noun2 •The ability to reproduce a particular movement using subconscious neuromuscular control which is acquired as a result of the physiological adaptation of the body to repetition of the movement.I said that one can move a muscle only if one has an inherent muscle memory which has been stored in the brain at some previous time. — 1922 •The ability to regain lost muscle size and strength much faster than initially building it, due to retained muscle nuclei. formsmuscle memories