— cycloidal , adj. — cycloidally , adv.
/suy"kloyd/ , adj.
1. resembling a circle; circular.
2. (of the scale of a fish) smooth-edged, more or less circular in form, and having concentric striations.
3. (of a fish) having such scales.
4. Psychiatry. of or noting a personality type characterized by wide fluctuation in mood within the normal range.
n.
5. a cycloid fish.
6. Geom. a curve generated by a point on the circumference of a circle that rolls, without slipping, on a straight line.
[ 1655-65; kykloeidés like a circle. See CYCL-, -OID ]