Definify.com
Webster 1913 Edition
Coarctate
1. 
To press together; to crowd; to straiten; to confine closely. 
[Obs.] 
Bacon.
 2. 
To restrain; to confine. 
[Obs.] 
Ayliffe.
 Co-arc′tate
,Adj.
 [L. 
coarctatus
, p. p. of coarctare 
to press together; co- 
+ arctare 
to press together, from arctus
, p. p. See Arctation
.] (Zool.) 
Pressed together; closely connected; – applied to insects having the abdomen separated from the thorax only by a constriction. 
Coarctate pupa 
(Zool.)
, a pupa closely covered by the old larval skin, as in most Diptera.
 Definition 2025
coarctate
coarctate
English
Adjective
coarctate (comparative more coarctate, superlative most coarctate)
- (anatomy) constricted, narrowed or compressed
 - (entomology, of a pupa) enclosed in a rigid case
 
Verb
coarctate (third-person singular simple present coarctates, present participle coarctating, simple past and past participle coarctated)