Hypertext Webster Gateway: "Dynameter"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Dynameter \Dy*nam"e*ter\, n. [Gr. ? power + -meter: cf. F.
dynam[`e]tre. Cf. {Dynamometer}.]
1. A dynamometer.
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.
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