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

• cathouses
• Catilinarian
• Catiline
• cation
• cationic
• cations
• catkin
• catkins
• cat-lap
• cat-laps
• catlike
• catling
• catlings
• cat litter
• catmint
• catmints
• catnap
• catnaps
• catnep
• catnip
• catnips
• cat o' mountain
• cat o' mountains
• Catonian
• cat-o'-nine-tails