extensometer

American  

[ek-sten-som-i-ter] / ˌɛk stɛnˈsɒm ɪ tər /

noun

1. an instrument for measuring minute degrees of expansion, contraction, or deformation.

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extensometer British  

/ ˌɛkstɛnˈsɪmɪtə, ˌɛkstɛnˈsɒmɪtə /

noun

1. an apparatus for studying small changes of length, as in the thermal expansion or mechanical compression of a solid

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Etymology

Origin of extensometer

First recorded in 1885–90; extens(ion) + -o- + -meter

Example Sentences

The deep well drilled for the extensometer can also be used to study the aquifer’s water chemistry.

From Washington Post

Eggleston and Pope discovered the Hampton Roads sanitation district would be willing to pay $1.3 million for a new extensometer.

From Washington Post

Cornu and A. Mallock, or directly by a modification of the extensometer method, as has been done recently by J. Morrow.

From Project Gutenberg

From measurements of displacement by an extensometer we may deduce the average extension of a filament of the bar terminated by the two scratches.

From Project Gutenberg

However, if the load had been excessive, and then relieved, the extensometer would no longer read exactly 2.0 in., but something more.

From Project Gutenberg