optical density

noun

1. physics the former name for reflection density transmission density

Example Sentences

The researchers monitored growth through optical density and chlorophyll-a levels to measure how these chemical factors affected cyanobacterial productivity.

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The user of this tool, however, will encounter terms like “macular pigment optical density,” “vertical photopic illuminance” and “spectral power distribution,” indicators that it’s probably best left to professional lighting designers.

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We include both optical density and direct cell counts to unambiguously demonstrate growth using two independent methods.

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This defect in the eye-lens is somewhat counteracted by a variable optical density, increasing from the outer to the central portion.

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Accordingly, when the optical density of the air changes as a result of its varying content of moisture, the colour-phenomenon undergoes an opposite change in each of the two cases.

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