half-plane

American  

[haf-playn, hahf-] / ˈhæfˌpleɪn, ˈhɑf- /

noun

Mathematics.

1. the part of the plane on one side of a straight line of infinite length in the plane.

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Etymology

Origin of half-plane

First recorded in 1890–95

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Example Sentences

See Examples For:

half-plane

The chickens are at the upper limit of what Wing’s drones — which are half-copter, half-plane hybrids — are capable of carrying.

From Seattle Times ● Aug. 30, 2021

In three dimensions, this same equation describes a half-plane.

From Textbooks ● Mar. 30, 2016

So Fairey came up with the Rotodyne, classed as a composite helicopter - essentially half-plane, half-helicopter.

From BBC ● Feb. 11, 2016

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