Tropic

['trɒpɪk] or ['trɑpɪk]

解释:

(noun.) either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics.

整理:默尔--From WordNet

解释:

(a.) Of, pertaining to, or designating, an acid obtained from atropine and certain other alkaloids, as a white crystalline substance slightly soluble in water.

(n.) One of the two small circles of the celestial sphere, situated on each side of the equator, at a distance of 23¡ 28/, and parallel to it, which the sun just reaches at its greatest declination north or south, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic.

(n.) One of the two parallels of terrestrial latitude corresponding to the celestial tropics, and called by the same names.

(n.) The region lying between these parallels of latitude, or near them on either side.

(a.) Of or pertaining to the tropics; tropical.

录入:鲁道夫

解释:

n. one of the two circles on the celestial sphere 23?28′ on each side of the equator where the sun turns as it were after reaching its greatest declination north or south: one of two circles on the terrestrial globe corresponding to these: (pl.) the regions lying between the tropics of Cancer and Capricorn.—adjs. Trop′ic -al pertaining to the tropics: being within or near the tropics.—adv. Trop′ically.—n. Trop′ic-bird a genus of bird the family Pha雝hontid usually seen in tropical regions.

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