English

A mathematical graph of the basic truncus forumula, marked in blue, with domain and range both restricted to [5, 5].

Noun

truncus ‎(plural trunci)

1. (biology) The thorax of an insect.
2. (geometry) A curve in the Cartesian plane consisting of all points (x,y) satisfying an equation of the form where a, b, and c are given constants.

Latin

Etymology

Unknown origin, but possibly related to trux^[1][2]

Noun

truncus m ‎(genitive truncī); second declension

1. tree trunk
2. trunk the human body
3. a piece cut off

Inflection

Second declension.

Derived terms

• trunculus

Descendants

References

• truncus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• truncus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• TRUNCUS in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• Félix Gaffiot (1934), “truncus”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.

1. ↑ Partridge, Origins: A Short Etymological Dictionary of Modern English
2. ↑ De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill