bolometer

[ boh-lom-i-ter, buh- ]

noun

, Physics.

1. a device for measuring minute amounts of radiant energy by determining the changes of resistance in an electric conductor caused by changes in its temperature.

bolometer

/ bəʊˈlɒmɪtə; ˌbəʊləˈmɛtrɪk /

noun

1. a sensitive instrument for measuring radiant energy by the increase in the resistance of an electrical conductor

Derived Forms

• boˈlometry, noun
• ˌboloˈmetrically, adverb
• bolometric, adjective

Other Words From

• bo·lo·met·ric [boh-l, uh, -, me, -trik], adjective
• bolo·metri·cal·ly adverb

Word History and Origins

Origin of bolometer¹

1880–85; < Greek bol ( ḗ ) ray + -o- + -meter

Word History and Origins

Origin of bolometer¹

C19: from bol- , from Greek bolē ray of light, stroke, from ballein to throw + -meter

Example Sentences

They may be investigated with the bolometer, an instrument invented by the late Professor Langley.

From Project Gutenberg

A more careful study has been made by Langley and Very with the bolometer.

From Project Gutenberg

We have a heat-measuring instrument, the bolometer, which makes the best thermometer seem Early Victorian.

From Project Gutenberg

Later, Langley reinvestigated the radiation of Pyrophorus and could detect no heating whatever with the bolometer.

From Project Gutenberg