Definition of: truncate

(trung′kāt) v.t. ·cat·ed, ·cat·ing
To cut the top or end from.
—adjective
1. Truncated.
2. Biol. Appearing as though cut or broken squarely off, as the end of certain leaves and shells, the tail of certain birds, the caudal fin of some fishes, etc. [<L truncatus, pp. of truncare <truncus TRUNK]
—trun·ca·tion (trung·kā′shən) noun