broadcastn.1. (Agric.) A casting or throwing seed in all directions, as from the hand in sowing.()2. an act of broadcasting; specifically, a program in which sounds or images are transmitted in all directions from a radio or television station; -- usually referring to a scheduled program on a commercial or public service radio or television station, using the normal radio frequencies for those media, in contrast to a radiotelephone conversation, which may also be transmitted in all directions, but is intended for receipt by a base station in the telephone network.()a.1. Cast or dispersed in all directions, as seed from the hand in sowing; widely diffused.()2. Scattering in all directions (as a method of sowing); -- opposed to planting in hills, or rows.()adv. So as to scatter or be scattered in all directions; so as to spread widely, as seed from the hand in sowing, or news from the press.()v.1. to cast or disperse in all directions, as seed from the hand in sowing; to diffuse widely.()2. to transmit (sounds, images, or other signals) in all directions from a radio or television station.()3. to disseminate (information, a speech, an advertisement, etc.) from a radio or television station.()4. to spread (information, news, gossip) widely by any means.()