WordNet (r) 3.0 (2006):

logo
    n 1: a company emblem or device [syn: logo, logotype]

The Free On-line Dictionary of Computing (30 December 2018):

LOGO

    A Lisp-like language for teaching
   programming, noted for its "turtle graphics" used to draw
   geometric shapes.  LOGO was developed in 1966-1968 by a group
   at Bolt, Beranek & Newman (now "BBN Technologies") headed
   by Wally Fuerzeig  (who still works there in
   2003) and including Seymour Papert .

   There are Logo interpreters for Macintosh, Unix, IBM
   PC, X Window System, and many PCs.  Implmentations include
   Berkeley Logo, MswLogo.

   (2000-03-28)