1. (

• barnacle ,
• cirriped ,
• cirripede

) marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces ;

2. (

• barnacle_goose ,
• barnacle ,
• Branta_leucopsis

) European goose smaller than the brant; breeds in the far north ;