truncate

Short definition from Wiktionary

Verb

1. 1
   To shorten (something) by, or as if by, cutting part of it off.
2. 2
   To shorten (a decimal number) by removing trailing (or leading) digits.
3. 3
   To replace a corner by a plane (or to make a similar change to a crystal).

Adjective

1. 1
   Truncated.
2. 2
   Having an abrupt termination.