| 单词 |
planetoid |
| 释义 |
planetoid, n. (a.)|ˈplænɪtɔɪd|
[f. planet n.1 + -oid. So F. planétoïde.]
A body resembling a planet; a name sometimes given to the minor planets or asteroids (see asteroid B. 1).
1803Edin. Rev. I. 430 Why may we not coin such a phrase as Planetoid? 1803Herschel in Phil. Trans. XCIII. 339 It is not in the least material whether we call them asteroids, as I have proposed; or planetoids, as an eminent astronomer, in a letter to me, suggested. 1863H. Spencer Ess. II. 46 With respect to the asteroids, or planetoids, as they are otherwise called. 1892N. & Q. 8th ser. I. 15/2 [Term discussed]. 1899Daily News 17 Jan. 7/3 The new ‘planetoid’ was discovered by Herr Witt, of the Urania Observatory of Berlin.
B. adj. (or attrib.). Of or belonging to the asteroids. So planeˈtoidal a., in same sense.
1862Sir H. Holland Ess. 280 note, Nearly seventy now (1862) stand in our catalogues..the heathen mythology has been invoked in vain to furnish names for this planetoid throng. 1881Proctor Poet. Astron. x. 362 Jupiter's action on the planetoidal ring. |
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