—v.tr.
1 cut the top or the end from (a tree, a body, a piece of writing, etc.).
2 Crystallog. replace (an edge or an angle) by a plane.
—adj. Bot. & Zool. (of a leaf or feather etc.) ending abruptly as if cut off at the base or tip.
Derivatives:
truncately adv. truncation n.
Etymology: L truncare truncat- maim
Useful english dictionary. 2012.