| 释义 |
dynameter
(daɪ-, dɪˈnæmɪtə(r): see dyna-)
[mod. f. Gr. δύνα(µις power + µέτρ-ον measure; or shortened from dynamometer.]
An instrument for measuring the magnifying power of a telescope; = dynamometer 2.
a1828Webster cites Ramsden. 1837Goring & Pritchard Microgr. 67 View the image..formed in the visual pencil of an engiscope, with a dynameter of very delicate divisions. 1878Lockyer Stargazing 116 The image can be measured with tolerable accuracy by Mr. Berthon's dynameter.
Hence dynaˈmetric, dynaˈmetrical adjs., of or pertaining to a dynameter.
1828Webster, Dynametrical. |