simple past tense and past participle of megaphone

(organic chemistry) A cytotoxic neolignan obtained from the laurel Aniba megaphylla.

A portable, usually hand-held, funnel-shaped device that is used to amplify a person’s natural voice toward a targeted direction.

(transitive, intransitive) To use a megaphone; to speak through a megaphone.

plural of megaphone

Third-person singular simple present indicative form of megaphone

present participle of megaphone

Of, or pertaining to, a megaphone / (of a sound) Produced by a megaphone / (of a voice) loud and echoey, as if produced by a megaphone

In a megaphonic manner.