DYNAMETER

Dy‐nam″e‐ter (?), n. [[Gr. � power + -meter: cf. F. dynamètre. Cf. Dynamometer.]] 1. 1. A dynamometer.
2. 2. (Opt.) An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed; which measurement, compared with the actual diameter of the glass, gives the magnifying power.