MEGAMETER; MEGAMETRE
Meg"a*me`ter, Meg"a*me`tre, n. Etym: [Mega- + meter, metre, n., 2.]

Defn: In the metric system, one million meters, or one thousand kilometers.

MEGAMPERE
Meg`am`père", n. Etym: [Mega- + ampère.] (Elec.)

Defn: A million ampères.

MEGAPHONE
Meg"a*phone, n. Etym: [Mega- + Gr.

Defn: A device to magnify sound, or direct it in a given direction in a greater volume, as a very large funnel used as an ear trumpet or as a speaking trumpet.

MEGAPHYTON
Me*gaph"y*ton, n. Etym: [NL., from Gr. me`gas great + fyto`n plant.]
(Paleon.)

Defn: An extinct genus of tree ferns with large, two-ranked leaves, or fronds.

MEGAPODE
Meg"a*pode, n. Etym: [Mega- + Gr. poy`s, podo`s, foot.] (Zoöl.)

Defn: Any one of several species of large-footed, gallinaceous birds of the genera Megapodius and Leipoa, inhabiting Australia and other Pacific islands. See Jungle fowl (b) under Jungle, and Leipoa.