telemeter
te·le·me·ter
noun
1.
any scientific instrument for observing events at a distance and transmitting the information back to the observer
Origin
From French télémètre (“device used for measuring distance”) coined by Selligue from télé- + -mètre, possibly from a blend of télescope and micromètre.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.