Against or in the opposite direction of contraction of a muscle (e.g., such as results from flexion of the lower arm (bending of the elbow joint) by an external force while contracting the triceps and other elbow extensor muscles to control that movement; opening of the jaw while flexing the masseter).
From Middle French excentrique, from Medieval Latin excentricus, from Ancient Greek ἔκκεντρος ("not having the earth as the center of an orbit"), from ἐκ + κέντρον. Equivalent to ex- + -centric.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.