[tuh-lem-i-ter, tel-uh-mee-ter]
any of certain devices or attachments for determining distances by measuring the angle subtending a known distance.
Electricity. the complete measuring, transmitting, and receiving apparatus for indicating, recording, or integrating at a distance, by electrical translating means, the value of a quantity.
verb (used with object)
to transmit (radio signals, data, etc.) automatically and at a distance, as between a ground station and an artificial satellite, space probe, or the like, especially in order to record information, operate guidance apparatus, etc.
verb (used without object)
to telemeter radio signals, data, etc.

1855–60; tele-1 + -meter

telemetric [tel-uh-me-trik] , adjective
telemetrically, adverb
telemetry [tuh-lem-i-tree] , noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
telemeter (tɪˈlɛmɪtə)
1.  any device for recording or measuring a distant event and transmitting the data to a receiver or observer
2.  any device or apparatus used to measure a distance without directly comparing it with a measuring rod, etc, esp one that depends on the measurement of angles
3.  (tr) to obtain and transmit (data) from a distant source, esp from a spacecraft

telemetry (tɪˈlɛmɪtrɪ)
1.  See also radiotelemetry the use of radio waves, telephone lines, etc, to transmit the readings of measuring instruments to a device on which the readings can be indicated or recorded
2.  the measurement of linear distance using a tellurometer

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1860, a rangefinder for surveying and artillery, from Fr. télémètre (1852), from télé- "far" (see tele-) + mètre "meter" (see meter (2)). Used from 1953 for a pay-as-you-watch TV system with a coin box attached to the set.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

telemetry te·lem·e·try (tə-lěm'ĭ-trē)
The science and technology of automatic measurement and transmission of data by radio or other means from remote sources to receiving stations for recording and analysis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
telemetry   (tə-lěm'ĭ-trē)  Pronunciation Key 
The measurement of data at a remote source and transmission of the data (typically by radio) to a monitoring station. Telemetry is used, for example, to track the movements of wild animals that have been tagged with radio transmitters, and to transmit meteorological data from weather balloons to weather stations.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
telemetry [(tuh-lem-uh-tree)]

Automatic measurement and transmission of data or information by such means as wire or (more commonly today) microwave relays from the source to a distant receiver.

Note: Satellites transmit their data by telemetry.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
He was treated with antibiotics and sent to the telemetry unit, where his oxygen concentration could be closely monitored.
More photos from inside the telemetry room today after the jump.
Angels of telemetry with vials of nitro watch over us.
It also provides stars and results, real-time telemetry data and newsy items of the day.
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