cycloid

Từ điển Oxford Learners Wordfinder Dictionary

I - noun

a line generated by a point on a circle rolling along a straight line
• Derivationally related forms:
cycloidal
• Hypernyms:
roulette, line roulette
• Hyponyms:
curate cycloid, prolate cycloid

II - adjective

resembling a circle
• Syn:
cycloidal
• Similar to:
rounded
• Derivationally related forms:
cycloid (for: cycloidal)