photometer.

An instrument used to measure the strength of light.

Use it for

Words that belong together

• a calibrated photometer
• photometer readings

On the page

The photometer registered a brief increase before the chamber went dark.

Usage notes

Primary category: sci-fi. Forms: Singular photometer; plural photometers. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description, setting. Commonness: uncommon.