| 单词 | cycloid |
| 释义 | Word Frequency cycloid(ˈsaɪklɔɪd) adjective 1. resembling a circle 2. (of fish scales) rounded, thin, and smooth-edged, as those of the salmon 3. psychiatry (of a type of personality) characterized by exaggerated swings of mood between elation and depression See also cyclothymia noun 4. geometry the curve described by a point on the circumference of a circle as the circle rolls along a straight line Compare trochoid (sense 1) 5. a fish that has cycloid scales Derived forms cycloidal (cyˈcloidal) adjective cycloidally (cyˈcloidally) adverb |
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