View synonyms for actinometer

actinometer

[ ak-tuh-nom-i-ter ]

Phonetic (Standard)IPA

noun

actinometer

/ ˌæktɪnəʊˈmɛtrɪk; ˌæktɪˈnɒmɪtə /

actinometer

/ ăk′tə-nŏm′ĭ-tər /

ac·tin·o·met·ric [ak-tin-oh-, me, -trik, ak-t, uh, -noh-], ac·tino·metri·cal adjective
acti·nome·try noun

First recorded in 1825–35; actino- + -meter

For judging long exposures, the use of an actinometer (issued in many inexpensive forms) is helpful.

We then shift the paper in the actinometer so as to get a fresh portion under the tissue strips, or we substitute a new piece.

Now refer to the actinometer and see what has taken place on the silver paper which we put into it.

The mystery was not a new type of infernal machine as they imagined but merely a home-made actinometer!

A very suitable instrument for timing the exposure of carbon tissue is Sawyer's actinometer.

April 25, 2024firkin

[fur-kin ]

Start each day with the Word of the Day in your inbox!

By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.

Browse