carapace /karˈə-pās/

1. The thick hard shell, made of bone or chitin, of the crab, tortoise, turtle, etc
2. A layer of heat-resistant tiles on a spacecraft
3. An inpenetrable outer shell, eg a reserved manner used as a protection against outside influences

carapāˈcial /-shl/ adjective

• sprinkler system
• sprinkler systems
• sprinkles
• sprinkling
• sprinklings
• sprint
• sprinted
• sprinter
• sprinters
• sprinting
• sprintings
• sprints
• sprit
• sprite
• spriteful
• spritelier
• spriteliest
• spritely
• sprites
• sprits
• spritsail
• spritsails
• spritz
• spritzed
• spritzer