{ Co*arct" (?), Co*arc"tate (?) }, v. t. [See Coarctate, a.] 1. To press together; to crowd; to straiten; to confine closely. [Obs.] Bacon.

2. To restrain; to confine. [Obs.] Ayliffe.

Co*arc"tate (?), a. [L. coarctatus, p. p. of coarctare to press together; co- + arctare to press together, from arctus, p. p. See Arctation.] (Zoöl.) Pressed together; closely connected; -- applied to insects having the abdomen separated from the thorax only by a constriction.

Coarctate pupa(Zoöl.), a pupa closely covered by the old larval skin, as in most Diptera.