compactĭo, ōnis, f. [compingo].
I In abstr., a joining together : membrorum, Cic. Fin. 5, 11, 33.—*
II In concr., the things that are joined together , a structure , frame , Vitr. 10, 15, 2 Schneid.
compāctiō ōnis, f compingo, a joining together : membrorum. ...
An Elementary Latin Dictionary