Definitions of truncus:
- noun: (biology) The thorax of an insect.
- noun: (medicine) The trunk (torso) of the human body or other animal body.
- noun: (medicine) An arterial trunk, such as the truncus arteriosus.
- noun: (geometry) 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.
(Definitions from Wiktionary)
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