Basic Guidelines For English Spellings
READ THESE ARTICLES
1Designating a complex form of toothed hinge found in shells of bivalve molluscs (rare).
2Entomology
Designating the largest form of the mandibles occurring in certain beetles, especially male stag beetles (family Lucanidae), or a beetle bearing such mandibles; contrasted with mesodont and "priodont".
Late 19th century; earliest use found in William Healey Dall (1845–1927), natural historian, paleontologist, and malacologist.