【化】 female screw connection
inner; inside; within
【医】 end-; endo-; ento-; in-; intra-
【化】 threaded connection
beginning or end; cobbra; conk; crumpet; end; first; garret; hair; head
leading; nob; noddle; pate; sconce; side; top; twopenny
【医】 capita; caput; cephal-; cephalo-; head; kephal-; kephalo-