Definition of unicorn

• n. - A fabulous animal with one horn; the monoceros; -- often represented in heraldry as a supporter.
• n. - A two-horned animal of some unknown kind, so called in the Authorized Version of the Scriptures.
• n. - Any large beetle having a hornlike prominence on the head or prothorax.
• n. - The larva of a unicorn moth.
• n. - The kamichi; -- called also unicorn bird.
• n. - A howitzer.