Stereo

The word component stereo- is Greek for "solid". It occurs in several scientific terms.

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• In common usage stereo commonly means this: see stereophonic sound.
• Recording sound using two or more microphones at once.
• Playing such a recording back through more than one speaker.
• An electronic device for reproducing stereo sound.
• Because of this, "stereo" or "in stereo" is sometimes used colloquially for when two rather than one of something are present.
• In chemistry, stereoisomers are molecules which are the same except that bond angles are different, and see stereochemistry.