Circle contact lens.

(engineering) A theoretical circle passing through the center points of bolt holes positioned with equal spacing.

(cricket, in a one-day match) A line, marked on the field, consisting of two semicircles around each wicket joined by parallel lines, outside of which there may be no more than two fielders

A social meeting of women who congregate to sew and talk together. / (historical, US) A discreet code for lesbian or bisexual actresses during Hollywood's golden age.

Alternative form of centre circle

plural of circle of fifths

Alternative form of cycle of fifths

(geography) Either of the two parallels of the Earth located at the latitude of 66° 33′ 44″ N and 66° 33′ 44″ S.

(music) a chord progression with ascending fourths and/or descending fifths

plural of circle progression