- 1
A small or narrow opening, gap, slit, or hole.
- an aperture in a wall
- 2
A hole which restricts the diameter of the lightpath through one plane in an optical system.
- 3
A hole which restricts the diameter of the lightpath through one plane in an optical system.; The diameter of such a hole which restricts the width of the lightpath through the whole system. For a telescope, this is the diameter of the objective lens.
- This telescope has a 100 cm aperture.
- 4
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
The maximum angle between the two generatrices.rare
- If the generatrix makes an angle θ to the axis, then the aperture is 2θ.
aperture
'æpә.tjuә5 senses · 52 ms
Level C1GRETOEFL