(n.) That in which anything is involved, folded, or wrapped; envelope.
(n.) The act of involving or infolding.
(n.) The act or process of raising a quantity to any power assigned; the multiplication of a quantity into itself a given number of times; -- the reverse of evolution.
(n.) The insertion of one or more clauses between the subject and the verb, in a way that involves or complicates the construction.
(n.) The relation which exists between three or more sets of points, a.a', b.b', c.c', so related to a point O on the line, that the product Oa.Oa' = Ob.Ob' = Oc.Oc' is constant. Sets of lines or surfaces possessing corresponding properties may be in involution.
(n.) The return of an enlarged part or organ to its normal size, as of the uterus after pregnancy.
(n.) The state of being entangled or involved; complication; entanglement.