Platanus orientalis, a deciduous tree known for its longevity and spreading crown.

A plane (the tool, not the vehicle) used for working the upper surface of staircase rails. They are relatively rounded

(optics) Any plane perpendicular to the axis of a lens or mirror. / (optics) Such a plane, in a camera, microscope etc, in which the real image is in focus.

A plane for making printers' reglets.

(US, politics, slang) An airplane used during a political campaign to transport cameramen, technicians, members of lesser press publications, etc., separate from the primary plane that carries the candidate and major reporters.

In aerial firefighting the aeroplane that leads and directs the air tankers

A small conductor attached to an insulated handle used to transfer electrical charge to a measuring instrument.

(geometry) A plane in which any pair of distinct points determine a line and any pair of distinct lines intersect at a point.

A jet: an airplane that is powered by a jet engine.

(anatomy) The anatomical position of the human skull, based on a plane passing through the inferior margin of the left orbit and the upper margin of each ear canal or external auditory meatus.