| 单词 | trochoid |
| 释义 | trochoid(ˈtrəʊkɔɪd) noun 1. the curve described by a fixed point on the radius or extended radius of a circle as the circle rolls along a straight line adjective also: trochoidal 2. rotating or capable of rotating about a central axis 3. anatomy (of a structure or part) resembling or functioning as a pivot or pulley Derived forms trochoidally (troˈchoidally) adverb Word origin C18: from Greek trokhoeidēs circular, from trokhos wheel |
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