From WordNet (r) 3.0 (2006) :
text editor
n 1: an editor who prepares text for publication [syn: copy
editor, copyreader, text editor]
2: (computer science) an application that can be used to create
and view and edit text files
From The Free On-line Dictionary of Computing (30 December 2018) :
text editor
A utility program for creating and modifying
text files. This differs from a word processor in that
the word processors often embed special control codes or
escape sequences in the file to control formatting.
(1996-11-15)