2. The state of being entangled or involved; complication;
entanglement.
All things are mixed, and causes blended, by mutual involutions.
Glanvill.
3. That in which anything is involved, folded, or wrapped; envelope.
Sir T. Browne.
4. (Gram.) The insertion of one or more clauses between the subject and
the verb, in a way that involves or complicates the construction.
5. (Math.) 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.
6. (Geom.) 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.
7. (Med.) The return of an enlarged part or organ to its normal size,
as of the uterus after pregnancy.
In*volve" (?), v. t. [imp. & p. p. Involved (?); p. pr. & vb. n.
Involving.] [L. involvere, involutum, to roll about, wrap up; pref. in-
in + volvere to roll: cf. OF. involver. See Voluble, and cf. Involute.]