1 entry 1 source
Pygidium
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
The caudal plate of trilobites, crustacean, and certain insects. See Illust. of Limulus and Trilobite.
1 entry 1 source
Part of speech: noun (n.)
The caudal plate of trilobites, crustacean, and certain insects. See Illust. of Limulus and Trilobite.