a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it; "the sums of the distances from the foci to any point on an ellipse is constant"
the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points
an apparatus for burning fuel (or refuse); "a diesel engine is an oil burner"
the heating elements of a stove or range on which pots and pans are placed for cooking; "the electric range had one large burner and three smaller one"