What is the meaning of Oculus?

A window or other opening that has an oval or circular shape (as of an eye).

  1. The central boss of a volute.
  2. An opening at the apex of a dome.

    The central boss of a volute.

    An opening at the apex of a dome.

    oculus

    eye

    :

    1. sight, vision
    2. luminary of the sun and stars
    3. spot resembling an eye, such as on a peacock feather
    4. :
      1. eye, bud, bourgeon
      2. bud, bulb or knob on many roots, on the reed, etc.
      3. great houseleek

        sight, vision

        luminary of the sun and stars

        spot resembling an eye, such as on a peacock feather

        :

        1. eye, bud, bourgeon
        2. bud, bulb or knob on many roots, on the reed, etc.
        3. great houseleek

          eye, bud, bourgeon

          bud, bulb or knob on many roots, on the reed, etc.

          great houseleek

          :

          1. principal ornament
          2. eye of the soul, mind's eye

          principal ornament

          eye of the soul, mind's eye

          Source: wiktionary.org