| 单词 | coarctate | 
| 释义 | co·arc·tate    (kō-ärktāt′)adj.  Zoology 1.  Enclosed within a hard shell, usually the skin of the last larval instar. Used of an insect pupa. 2.  Constricted, narrowed, or compressed, as a segment of a blood vessel. [Latin coarctātus, past participle of coarctāre, to compress, alteration of coartāre : co-, co- + artāre, to compress (from artus, tight, confined; see  ar- in the Appendix of Indo-European roots).]  | 
	
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