Definition of "on-air" []

• Spoken, occurring, or used during broadcasting: an on-air gaffe; changed his on-air name. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "With a resonant voice and warmly earnest delivery, Mr. Davis was an on-air presence at WGMS for more than 50 years until the station went defunct in 2007."
• "What was it that Keys said during his on-air apology?"
• "The Daily Show put an ingenious reel together of CNN's Don Lemon expressing bewilderment at various on-air quirks and soft-news segments stuff like how much it would cost to enroll in the fictional Hogwarts School of Witchcraft and Wizardry or a guy who dresses as a devil to illustrate just how hot it is outside."