A ring- or donut-shaped area or structure.
The ring of the sun not covered by the moon in an annular solar eclipse.
Structure in a fern that consists of differentially thick-walled cells on a sporangium that bend and distort as a result of drying.
The region in a plane between two concentric circles of different radii.
The membranous remnants of a partial veil which leaves a ring on the stem of a mushroom.
The space contained between the centre well bore and any external tubing. Sometimes used for separated gas flow.
Any topological space homeomorphic to the region in a plane between two concentric circles of different radius.
A potter's wheel.
A wheelrim.
A round portion of cheese.
The lowest straight in poker: ace, 2, 3, 4, 5.
A Catherine wheel firework.
A recurring or cyclical course of events.
A turn or revolution; rotation; compass.
The instrument attached to the rudder by which a vessel is steered.
A manoeuvre in marching in which the marchers turn in a curving fashion to right or left so that the order of marchers does not change.
A person with a great deal of power or influence; a big wheel.
The breaking wheel, an old instrument of torture.
A circular device capable of rotating on its axis, facilitating movement or transportation or performing labour in machines.
A spinning wheel.
A steering wheel and its implied control of a vehicle.
To roll along on wheels.
To cause to change direction quickly, turn.
To travel around in large circles, particularly in the air.
To put into a rotatory motion; to cause to turn or revolve; to make or perform in a circle.
To transport something or someone using any wheeled mechanism, such as a wheelchair.
To change direction quickly, turn, pivot, whirl, wheel around.