- (n.) An instrument for pinching a horse's nose, and thus restraining him.
- (n.) Any cirriped crustacean adhering to rocks, floating timber, ships, etc., especially (a) the sessile species (genus Balanus and allies), and (b) the stalked or goose barnacles (genus Lepas and allies). See Cirripedia, and Goose barnacle.
- (n.) A bernicle goose.
- (sing.) Spectacles; -- so called from their resemblance to the barnacles used by farriers.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). barnacle. Retrieved September 21, 2026, from http://smartdefine.org/barnacle/definitions/1978401 |
| Chicago | Webster's. 2011. "barnacle" http://smartdefine.org/barnacle/definitions/1978401 (accessed September 21, 2026). |
| Harvard | Webster's 2011, barnacle, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/barnacle/definitions/1978401>. |
| MLA | Webster's. "barnacle" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/barnacle/definitions/1978401> |