Kelime: ki·net·ics Söyleniş:k&-'ne-tiks also kI- İşlev:noun plural but singular or plural in construction 1 a : a branch of science that deals with the effects of forces upon the motions of material bodies or with changes in a physical or chemical system b : the rate of change in such a system 2 : the mechanism by which a physical or chemical change is effected