| 释义 |
cyclometer|saɪˈklɒmɪtə(r)|
[f. Gr. κύκλο-ς circle + µέτρον measure, -µετρος, -µετρης measuring.]
1. An instrument for measuring circular arcs.
1815W. Adamson (title), An Universal Principle for Dividing the Circle..by a new Instrument called the Cyclometer. 1880C. & F. Darwin Movem. Pl. 93 The black lines on the hypocotyls..became distinctly curved, but in very various degrees (namely, with radii between 20 and 80 mm. on Sachs' cyclometer).
2. An apparatus attached to the wheel of a vehicle, esp. of a cycle, for registering the distance traversed.
1880Scribn. Mag. Feb. 496 The cyclometers registered thirty-five miles. 1883B. W. Richardson Cycling in Longm. Mag. Oct. 604 By means of their cyclometers they [cyclists] could correct..errors respecting distances which the ‘signposts’ almost invariably make.
3. humorously. A ‘circle-squarer’.
1866De Morgan in Athenæum 27 Oct. 534/2 Cyclometers have their several styles of wit. |