motility vs jerking

Other hyponyms of motility include abduction, adduction, agitation, body English, circumduction, disturbance, fetal movement, foetal movement, dart, flit, gesture, headshake, headshaking, inclination, inclining, eversion, everting, inversion, inversion, upending, jerk, jolt, saccade, kick, kicking, kneel, kneeling, lurch, pitch, pitching, eye movement, opening, prostration, reach, reaching, stretch, reciprocation, reclining, retraction, retroflection, retroflexion, rotary motion, rotation, closing, shutting, sitting, posing, sitting, snap, squat, squatting, sweep, toss, quiver, quivering, vibration, wave, flicker, flutter, waver, standing, span, straddle, stroke, squirm, wiggle, wriggle, eurhythmics, eurhythmy, eurythmics, eurythmy.