ara: صمام مفرغ

Information
has URI	http://lexvo.org/id/term/ara/%D8%B5%D9%85%D8%A7%D9%85%20%D9%85%D9%81%D8%B1%D8%BA

Meaning
means	(noun) electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope electron tube, tube, thermionic tube, vacuum tube, thermionic vacuum tube, thermionic valve