名詞 kinematics:

1. the branch of mechanics concerned with motion without reference to force or mass

kin.e.mat.ics

n.(used with a sing. verb)（名詞）（與單數(shù)動(dòng)詞連用）
The branch of mechanics that studies the motion of a body or a system of bodies without consideration given to its mass or the forces acting on it.
運(yùn)動(dòng)學(xué)：力學(xué)的一個(gè)分支，研究一個(gè)物體或物體系統(tǒng)的運(yùn)動(dòng)，而不考慮加在物體上的質(zhì)量或力

來源：
From Greek kinôma kinômat- [motion]
源自 希臘語 kinôma kinômat- [運(yùn)動(dòng)]
from kinein [to move] * see kei- 2
源自 kinein [移動(dòng)] *參見 kei- 2

【引伸】
kin.emat.ic 或
kin.emat.ical
adj.（形容詞）
kin.emat.ically
adv.（副詞）