Motion on a small scale; (originally specifically) small muscular movements, especially as recorded cinematographically for ergonomic studies (usually attributive).
Origin
Early 20th century; earliest use found in Frederick Talbot (b. 1880). From micro- + motion.
Definition of micromotion in US English:
micromotion
nounˈmʌɪkrə(ʊ)ˌməʊʃn
Motion on a small scale; (originally specifically) small muscular movements, especially as recorded cinematographically for ergonomic studies (usually attributive).
Origin
Early 20th century; earliest use found in Frederick Talbot (b. 1880). From micro- + motion.