antarctic circle(n = noun.location) - a line of latitude north of the south pole;
is a kind of polar circle

antarctic, antarctic continent, antarctic ocean, antarctic peninsula, antarctic zone, arctic circle, back circle, charmed circle, circle, circle around, circle of curvature, circle of willis, circle round, color circle, dip circle, double leg circle, dress circle, equinoctial circle, fairy circle, family circle, full circle, grand circle, great circle, hour circle, in a circle, inner circle, osculating circle, parhelic circle, parquet circle, polar circle, traffic circle, vertical circle, vicious circle, winner's circle