(a) the practice of ploughing fields into ridges; (b) a chain of mountain or oceanic ridges; (c) the pattern of ridges on the hand.
| 单词 | θ3121 |
| 释义 | the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > undersea ridge (6) ridge system1819 (a) the practice of ploughing fields into ridges; (b) a chain of mountain or oceanic ridges; (c) the pattern of ridges on the hand. oceanic ridge1915 a ridge on the ocean floor; (now) spec. = mid-ocean ridge n. at mid-ocean, adj. sill1933 A high ridge on the sea bed that effectively separates the bodies of water on either side. ridge1944 A long and narrow stretch of elevated ground; a range or chain of hills or mountains. Also applied to submarine features (cf. mid-ocean ridge n. at… mid-ocean ridge1961 Situated or occurring in the middle of an ocean. ocean ridge1961 = mid-ocean ridge n. at mid-ocean, adj. |
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