n.
Pronunciation: k ō - ' h ē -zh ə n
Function: noun
Etymology: Latin cohaesus, past participle of cohaer ē re
Date: 1660
1 : the act or state of sticking together tightly especially : UNITY <the lack of cohesion in the Party ― Times Lit. Supp. >
2 : union between similar plant parts or organs
3 : molecular attraction by which the particles of a body are united throughout the mass
– co · he · sion · less \ -l ə s \ adjective