See Also: Cycloid(medicine)
cycloid(dictionary)

cycloid (iou)



cycloid noun & adjective. M17.
[from Greek kukloeides adjective, circular: see CYCLE noun, -OID.]
A. noun.
Math. A curve traced by a point on the circumference of a circle (or occas. in some other fixed relation to it) as the circle rolls along a straight line. M17.
Psychiatry. = CYCLOTHYMIC noun. E20.
b. adjective.
Zoology. Designating fish-scales of approximately circular form with concentric striations; having such scales. M19.
Psychiatry. = CYCLOTHYMIC adjective. E20.
cy'cloidal adjective (Math.) of, pertaining to, or of the form of a cycloid (CYCLOID noun 1) E18.