# bicorn

> English word · Noun · IPA /ˈbaɪkɔːn/

## Definitions
1. A two-cornered hat, worn by European and American military and naval officers from the 1790s.
2. A plane curve having two cusps.
3. A beast having two horns, either real or fictional.

## Etymology
Borrowed from Latin bicornis (“two-horned; two-pronged”). Compare French bicorne (“two-cornered hat; two-horned monster”) and Middle English bicorne (“two-horned anvil; two-pronged fork; fabulous (two-horned) beast”). Doublet of bicorne.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bicorn