plastron /plasˈtron/

1. A fencer's wadded breast-shield
2. The ventral section of the shell of a tortoise or turtle, or other animal
3. The front of a dress shirt
4. A separate ornamental front part of a woman's bodice
5. A steel breastplate worn under the hauberk (historical)

plasˈtral adjective

• mastless
• mastodon
• mastodons
• mastodontic
• mastodynia
• mastodynias
• mastoid
• mastoidal
• mastoid bone
• mastoid bones
• mastoiditides
• mastoiditis
• mastoid process
• mastoids
• masts
• masturbate
• forepointed
• forepointing
• forepoints
• forequarter
• forequarters
• fore-quoted
• foreran
• fore-rank
• fore-ranks