A white myco-heterotrophic herb, Monotropa uniflora, of the family Ericaceae.

A plane used for final flattening out of wooden surfaces.

A Central American orchid (Peristeria elata), having a flower stem five or six feet high, with numerous globose white fragrant flowers. The column in the centre of the flower resembles a dove.

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

plural of planariid

(zoology) Any flatworm in the family Planariidae.

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

Any of several plants, of the genus Alisma, that inhabit marshy places

plural of planetary aberration

(astronomy) A deviation of where a planet appears to be, due to the motion of the planet during the time that the light reaches the Earth.