| Barnacle (n.) Any cirriped crustacean adhering to rocks, floating timber, ships, etc., esp. (a) the sessile species (genus Balanus and allies), and (b) the stalked or goose barnacles (genus Lepas and allies). See Cirripedia, and Goose barnacle. |
| Barnacle (n.) A bernicle goose. |
| Barnacle (n.) An instrument for pinching a horse's nose, and thus restraining him. |
| Barnacle (sing.) Spectacles |
| barnacle goose / barnacle Branta leucopsis European goose smaller than the brant, breeds in the far north |
| barnacle cirriped / cirripede marine crustaceans with feathery foodatching appendages, free-swimming as larvae, as adults form a hard shell and live attached to submerged surfaces |
| acorn barnacle / rock barnacle / Balanus balanoides barnacle that attaches to rocks especially in intertidal zones |
| goose barnacle / gooseneck barnacle / Lepas fascicularis stalked barnacle that attaches to ship bottoms or floating timbers |