adjective [ only before noun ]
1.
on a ship, aircraft or vehicle :
an on-board motor
2.
( computing ) relating to, or controlled by, part of the main circuit board :
a PC with on-board sound
adjective [ only before noun ]
1.
on a ship, aircraft or vehicle :
an on-board motor
2.
( computing ) relating to, or controlled by, part of the main circuit board :
a PC with on-board sound
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005