PROTOSTOMES
- PROTOSTOME, a major group of bilateral metazoan animals, that includes mollusks and annelids [n]
- A multicellular organism whose mouth develops from a primary embryonic opening, such as an annelid, mollusk, or arthropod
- PROTOSTOME [n]
SCRABBLE® is a registered trademark, and all intellectual property rights in and to the game of Scrabble® are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, which is a subsidiary of Mattel Inc. scrabble-solver.com is not affiliated with SCRABBLE®, Mattel, Spear, or Hasbro in any way.