# rhamphoid

> English word · Adjective

## Definitions
1. Of a cusp: defined by the equation (y-x²)²=x⁵, which is parametrized by (t²,t⁴+t⁵); having two branches with concavity in the same direction.

## Etymology
Borrowed from Ancient Greek ῥάμφος (rhámphos, “beak”) + -oid.

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