truncate

To shorten (something) by, or as if by, cutting part of it off.

“The script was truncated to leave time for commercials.”

mathematicsTo shorten (a decimal number) by removing trailing (or leading) digits.

geometryTo replace a corner by a plane (or to make a similar change to a crystal).

Approximate by ignoring all terms beyond a chosen one

“truncate a series”

Make shorter as if by cutting off

“truncate a word”

“Erosion has truncated the ridges of the mountains”

Truncated.

botanyanatomyHaving an abrupt termination.

Terminating abruptly by having or as if having an end or point cut off

“a truncate leaf”

“truncated volcanic mountains”

“a truncated pyramid”