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Rareapertures
The correct spelling is apertures.
How to pronounce apertures
noun
Say it like: Ape-rch-ers
The correct spelling is apertures. An opening, gap, or hole, usually small and narrow For example: "an aperture in a wall"
Usage Examples
“an aperture in a wall”
“This telescope has a 100cm aperture.”
“If the generatrix makes an angle θ to the axis, then the aperture is 2θ.”
Definition
noun
- 1.An opening, gap, or hole, usually small and narrow
- 2.Something which restricts the diameter of the light path through one plane in an optical system.
- 3.The diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens.
- 4.(communications) The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.
- 5.(of a right circular cone) The maximum angle between the two generatrices.
Similar words
Words related in meaning — check their spelling too.