from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fossil bivalve mollusk of the genus Hippurites, of many species, having a conical, cup-shaped undervalve, with a flattish upper valve or lid.
from the GNU version of the Collaborative International Dictionary of English
- n. A fossil bivalve mollusk of the genus Hippurites, of many species, having a conical, cup-shaped under valve, with a flattish upper valve or lid. Hippurites are found only in the Cretaceous rocks.
from The Century Dictionary and Cyclopedia
- n. A specimen or species of the family Hippuritidæ one of the Rudistes; a horsetail. Hippurites were formerly classed by Lamarck and Latreille with belemnites, etc., as being cephalopods.
- n. A kind of fossil cupcoral, Cyathophyllum ceratites of Goldfuss.
- Pertaining to or having the characters of the Hippuritidæ
- Same as hippuritic.
Ancient Greek ἵππος (hippos, "horse") + οὐρά (oura, "tail") + -ite (Wiktionary)