| dynameter | 1. A dynamometer. 2. <optics> 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. Origin: Gr. Power: cf. F. Dynametre. Cf. Dynamometer. Source: Websters Dictionary (01 Mar 1998) |
|---|