micromotion

[ mahy-kruh-moh-shuhn ]
/ ˈmaɪ krəˌmoʊ ʃən /

noun

a motion, especially a periodic one, of very short duration or length.
(in time and motion study) the analysis of the time of a work performance in its basic subdivisions with the aid of a timing apparatus, motion-picture equipment, etc.

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Origin of micromotion

First recorded in 1910–15; micro- + motion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020