Definitions
from The Century Dictionary.
- noun Same as
phragmacone .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) The thin chambered shell attached to the anterior end of a belemnite.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
chambered portion of theshell of acephalopod , divided bysepta intocamerae .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the thin conical chambered internal shell (either straight or curved) of a belemnite
Etymologies
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Examples
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chained_bear commented on the word phragmocone
Usage on nucleus. "The chambered part of the shell in some cephalopods; esp. the conical chambered internal shell of a belemnite." (OED)
September 8, 2008