“+ noun plural but singular or plural in construction
Etymology: bi- (II) + mechanics
: the mechanical bases of biological, especially muscular, activity ; also : the study of the principles and relations involved
“+ noun plural but singular or plural in construction
Etymology: bi- (II) + mechanics
: the mechanical bases of biological, especially muscular, activity ; also : the study of the principles and relations involved
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012