| 单词 | horizon |
| 释义 | Word Frequency horizon(həˈraɪzən) noun 1. Also called: visible horizon, apparent horizon the apparent line that divides the earth and the sky 2. astronomy a. Also called: sensible horizon the circular intersection with the celestial sphere of the plane tangential to the earth at the position of the observer b. Also called: celestial horizon the great circle on the celestial sphere, the plane of which passes through the centre of the earth and is parallel to the sensible horizon 3. the range or limit of scope, interest, knowledge, etc 4. a thin layer of rock within a stratum that has a distinct composition, esp of fossils, by which the stratum may be dated 5. a layer in a soil profile having particular characteristics A horizon, B horizon, C horizon 6. on the horizon Derived forms horizonless (hoˈrizonless) adjective Word origin C14: from Latin, from Greek horizōn kuklos limiting circle, from horizein to limit, from horos limit |
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