What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Aperture vs Den - What's the difference?

aperture | den | Related terms |

Aperture is a related term of den.


As a noun aperture

is an opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.

aperture

English

Noun

(en noun)
  • An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.
  • * Gilpin
    • an aperture between the mountains
  • * Owen
    • the back aperture of the nostrils
  • (optics) Something which restricts the diameter of the light path through one plane in an optical system.
  • (astronomy, photography) 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. e.g. a telescope may have a 100 cm aperture.
  • (spaceflight, 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 .
  • (mathematics, rare, of a right circular cone) The maximum angle between the two generatrices.
    • If the generatrix makes an angle ? to the axis, then the aperture is 2?.

    Usage notes

    The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100° aperture.

    Derived terms

    * aperture priority

    Related terms

    * aperient

    External links

    * * ----

    den

    English

    Etymology 1

    From (etyl) den, from (etyl) .

    Noun

    (en noun)
  • A small cavern or hollow place in the side of a hill, or among rocks; especially, a cave used by a wild animal for shelter or concealment.
    • a den of robbers
    Daniel was put into the lions’ den .
  • A squalid or wretched place; a haunt.
    • a den of vice
    an opium den'''; a gambling '''den
  • A comfortable room not used for formal entertaining.
  • (UK, Scotland, obsolete) A narrow glen; a ravine; a dell.
    • (Shakespeare)
    Synonyms
    * (home of certain animals) lair *: See also:

    Verb

    (denn)
  • (reflexive) To ensconce or hide oneself in (or as in) a den.

    • Etymology 2

    From (etyl) denier, from (etyl) denarius.

    Abbreviation

    (Abbreviation) (head)
  • (a unit of weight)

    • Anagrams

    * ----