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The Collaborative International Dictionary
Megameter

Megameter \Meg"a*me`ter\, Megametre \Meg"a*me`tre\, n. [Mega- + meter, metre, n., 2.] In the metric system, one million meters, or one thousand kilometers.

Megameter

Megameter \Me*gam"e*ter\, n. [Mega- + -meter: cf. F. m['e]gam[`e]tre.] (Physics)

  1. An instrument for determining longitude by observation of the stars.

  2. A micrometer. [R. & Obs.]
    --Knight.

Wiktionary
megameter

n. 1 (alternative spelling of megametre from=US English) 2 An instrument for determining longitude by observation of the stars. 3 A micrometer.

Usage examples of "megameter".

It was sunset, and the ranked agrav structures hung against the light, megameter upon megameter.

The negative megameter dropped ten points and Sverdlov felt a little surge as the ship wallowed to one side from an unbalanced thrust.

For a moment, he thinks he can see something in the distant mist, an indeterminate distance away – it's hard to distinguish centimeters from megameters, with no scale indicator and a horizon a continental distance away – but he's not sure what it is.

In another direction, the cylinder that was the T machine whirled, its mass and might brought by a tiny distance - about fifty megameters, hardly more than the Circumference of a terrestroid planet-down to a bit of jewelry adrift in heaven.