tellurometer: meaning, definition, pronunciation and examples
RareTechnical / Historical
Quick answer
What does “tellurometer” mean?
A precise electronic instrument for measuring long distances (typically tens of kilometres) by timing the propagation of microwave or radio signals.
Audio
Pronunciation
Definition
Meaning and Definition
A precise electronic instrument for measuring long distances (typically tens of kilometres) by timing the propagation of microwave or radio signals.
A specific, now mostly historical, type of surveying equipment. It uses the phase comparison of modulated radio waves between two units to calculate distance with high accuracy. While revolutionary in mid-20th-century surveying, it has been largely superseded by GPS technology.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. The device was invented by Dr. Trevor Wadley in South Africa (1957) and used internationally, primarily in Commonwealth and American surveying contexts.
Connotations
Connotes mid-20th-century technical innovation in precise measurement. May evoke a sense of historical methodology among modern surveyors.
Frequency
Equally rare and specialised in both varieties. Likely encountered only in historical technical texts or by seasoned professionals.
Grammar
How to Use “tellurometer” in a Sentence
The [surveyors] used a tellurometer to [measure the baseline].A tellurometer was employed for [accurate geodetic work].Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Used in historical papers on surveying, geodesy, or the history of technology.
Everyday
Virtually never used.
Technical
The primary context. Appears in legacy surveying manuals, technical histories, and discussions of pre-GPS measurement techniques.
Watch out
Common Mistakes When Using “tellurometer”
- Misspelling: 'tellurimeter', 'telurometer'.
- Confusing it with a theodolite (which measures angles).
- Using it as a general term for any modern surveying tool like a total station.
FAQ
Frequently Asked Questions
Rarely. It has been almost entirely replaced by Global Navigation Satellite Systems (GNSS) like GPS and modern electronic total stations, which are faster and more convenient.
It derives from Latin 'tellūs, tellūris' meaning 'earth' or 'ground', referring to its use in measuring distances on the earth.
Its main advantage was its ability to measure lines tens of kilometres long with high accuracy (up to a few centimetres) in almost any weather, day or night, which was a significant improvement over optical methods.
No, it is strictly a noun referring to the device. The action would be 'to measure with a tellurometer' or 'to use a tellurometer'.
A precise electronic instrument for measuring long distances (typically tens of kilometres) by timing the propagation of microwave or radio signals.
Tellurometer is usually technical / historical in register.
Tellurometer: in British English it is pronounced /ˌtɛl(j)ʊˈrɒmɪtə/, and in American English it is pronounced /ˌtɛljʊˈrɑːmɪtər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'Tell-u-ro-meter' -> It TELLs U (you) the ROmeter (distance in meters). It tells you how far it is.
Conceptual Metaphor
MEASUREMENT IS PRECISION (emphasises extreme accuracy over vast, 'telluric' or earthly distances).
Practice
Quiz
A tellurometer is primarily used for: