from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Zoology Enclosed in an oval horny case. Used of an insect pupa.
  • adj. Zoology Constricted, narrowed, or compressed, as a segment of a blood vessel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. constricted, narrowed or compressed
  • adj. enclosed in a rigid case
  • v. To press together; to crowd.
  • v. To restrain; to confine.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Pressed together; closely connected; -- applied to insects having the abdomen separated from the thorax only by a constriction.

from The Century Dictionary and Cyclopedia

  • Same as coarct.
  • Crowded together. Specifically— In entomology: Compressed; much attenuated, generally at the base; having a narrow base, but wider and thicker toward the apex. Crowded; packed into a small space.
  • In botany, compact; dense, as a panicle; closely appressed, as a foliaceous thallus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. (of an insect pupa) enclosed in a rigid case


Latin coarctātus, past participle of coarctāre, to compress, alteration of coartāre : co-, co- + artāre, to compress (from artus, tight, confined; see ar- in Indo-European roots).
(American Heritage® Dictionary of the English Language, Fourth Edition)



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  • JM has too many coarctate ideas - not mushroom inside!

    October 5, 2010