单词	cycloid
释义	cy·cloid I. \ˈsīˌklȯid\ noun (-s) Etymology: French cycloïde, from Greek kykloeidēs, adjective, circular, from kykl- cycl- + -oeidēs -oid 1. : a curve traced by any point on the circumference of a circle that rolls without sliding on a straight line 2. : cyclothyme II. adjective Etymology: Greek kykloeidēs 1. : arranged or progressing in circles : circular  < cycloid protoplasmic movements > 2. : having concentric lines of growth and a smooth margin and surface  < cycloid scales are characteristic of soft-rayed fishes > : consisting of scales of this type  < cycloid scalation > : having scales of this type  < cycloid fishes > — compare ctenoid 3. : cyclothymic
随便看	pretibial pretibial fever pretil pretium pretium affectionis pret-nom pretone pretonic pretophaceous pretor pretoria pretorial pretorial pretorial court pretorian pretorium pretorship pretreat pretreatment pretrial prettification prettifier prettify prettily prettiness

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