Akademik

protostomia

\\ˌ ̷ ̷ ̷ ̷ˈstōmēə\ noun plural

Usage: capitalized

Etymology: New Latin, from prot- + -stomia

: animals in which the definitive mouth develops directly from the blastopore (as most worms, bryozoans, brachiopods, mollusks, and arthropods) — compare deuterostomia

Useful english dictionary. 2012.