1. Having no mouth or mouthlike opening
   - mouthless

Antonym: stomatous

• coalfish
• coalhole
• cask
• casket
• caskful
• Casmerodius
• Casmerodius albus
• Caspar
• Caspar Bartholin
• caspase
• caspase-mediated cell death
• Casper
• Caspian
• Caspian Sea
• casque
• casquet
• casquetel
• Cass Gilbert
• Cassandra
• cassareep
• cassation
• cassava
• cassava starch
• Cassegrainian telescope
• casserole