| 单词 | retrograde |
| 释义 | Word Frequency retrograde(ˈrɛtrəʊˌɡreɪd) adjective 1. moving or bending backwards 2. (esp of order) reverse or inverse 3. tending towards an earlier worse condition; declining or deteriorating 4. astronomy a. occurring or orbiting in a direction opposite to that of the earth's motion around the sun Compare direct (sense 18)b. occurring or orbiting in a direction around a planet opposite to the planet's rotational direction the retrograde motion of the satellite Phoebe around Saturn c. appearing to move in a clockwise direction due to the rotational period exceeding the period of revolution around the sun Venus has retrograde rotation 5. biology tending to retrogress; degenerate 6. music of, concerning, or denoting a melody or part that is played backwards 7. obsolete opposed, contrary, or repugnant to verb (intransitive) 8. to move in a retrograde direction; retrogress 9. US military another word for retreat (sense 1) Derived forms retrogradation (ˌretrograˈdation) noun retrogradely (ˈretroˌgradely) adverb Word origin C14: from Latin retrōgradī to go backwards, from gradi to walk, go |
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