ster⋅e⋅o
[ster-ee-oh, steer-]
noun, plural ster⋅e⋅os, adjective, verb | 1. | stereoscopic photography. |
| 2. | a stereoscopic photograph. |
| 3. | stereophonic sound reproduction. |
| 4. | a system or the equipment for reproducing stereophonic sound. |
| 5. | Printing. stereotype (defs. 1, 2). |
| 6. | pertaining to stereophonic sound, stereoscopic photography, etc. |
| 7. | Printing. stereotype (def. 5). |
1815–25; by shortening

stereo-
| a combining form borrowed from Greek, where it meant “solid”, used with reference to hardness, solidity, three-dimensionality in the formation of compound words: stereochemistry; stereogram; stereoscope. |
< Gk stereós

stereo.
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Copyright © 2009 by Houghton Mifflin Company.
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stereo
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| stereo stereophonic |
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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stereo
equipment for sound recording and reproduction that utilizes two or more independent channels of information. Separate microphones are used in recording and separate speakers in reproduction; they are arranged to produce a sense of recording-hall acoustics and of the location of instruments within an orchestra. The effectiveness of stereophonic reproduction was demonstrated as early as 1933. Two-track stereophonic tape for the home became common in the 1950s and the stereophonic phonograph record, with two separate channels of information recorded in a single groove, in 1958. In the early 1970s, quadraphonic sound systems, employing four independent channels of information for even greater realism, became commercially available and later led to "surround-sound" systems
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