Definitions
from The Century Dictionary.
- noun In zoology, the triangular space between the beak and the hinge of brachiopod shells. It is usually covered in by a shelly plate.
- noun In the Brachiopoda, the convex or concave single plate which covers the delthyrium or pedicle-passage.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) The triangular space under the beak of many brachiopod shells.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology The
triangular space under thebeak of manybrachiopod shells .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Latin, from Ancient Greek. See delta.
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Examples
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fbharjo commented on the word deltidium
a plethora of triangles! del-tedium
November 27, 2009