mi·cro·pho·tom·e·ter
n : an instrument for measuring the amount of light transmitted or reflected by small areas or for measuring the relative densities of spectral lines on a photographic film or plate mi*cro*pho*to*met*ric adj mi*cro*pho*to*met*ri*cal*ly adv mi*cro*pho*tom*e*try n pl -tries
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