What is the meaning of Aperture?

A small or narrow opening, gap, slit, or hole.

A hole which restricts the diameter of the lightpath through one plane in an optical system.

  1. 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.

    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.

    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.

    The maximum angle between the two generatrices.

    opening, openness, aperture

    plural of apertura

    vocative masculine singular of apertūrus

    inflection of aperturar:

    1. first/third-person singular present subjunctive
    2. third-person singular imperative

    first/third-person singular present subjunctive

    third-person singular imperative

    Source: wiktionary.org