1. Barnacle that attaches to rocks especially in intertidal zones
   - acorn barnacle, rock barnacle

Type of: barnacle, cirriped, cirripede

Part of: Balanus, genus Balanus

Encyclopedia: Balanus balanoides

• air-slake
• air-sleeve
• air-to-air
• air-to-air missile
• air-to-ground
• air-to-ground missile
• air-to-surface
• air-to-surface missile
• airborne
• airborne patrol
• airborne transmission
• airbrake
• airbrush
• airburst
• airbus
• aircraft
• aircraft carrier
• aircraft engine
• aircraft landing
• aircraftman
• aircraftsman
• aircrew
• aircrewman
• airdock
• airdrome