Truncation
Pronunciation : Trun*ca"tion
Part of Speech : n.
Etymology : [L. truncatio.]
Definition : 1. The act of truncating, lopping, or cutting off.
2. The state of being truncated.
3. (Min.)
Defn: The replacement of an edge or solid angle by a plane, especially when the plane is equally inclined to the adjoining faces.
Source : Webster's Unabridged Dictionary, 1913