# truncus

> English word · Noun

## Definitions
1. The thorax of an insect.
2. The trunk (torso) of the human body or other animal body.
3. An arterial trunk, such as the truncus arteriosus.
4. A curve in the Cartesian plane consisting of all points (x,y) satisfying an equation of the form f(x)=a/(x+b)²+c where a, b, and c are given constants.

## Etymology
From Latin truncus. Doublet of tronk and trunk.

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