extensometer

[ ek-sten-som-i-ter ]

noun

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

extensometer

/ ˌɛkstɛnˈsɪmɪtə; ˌɛkstɛnˈsɒmɪtə /

noun

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

Word History and Origins

Origin of extensometer¹

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