Definitions for Atriumˈeɪ tri əm; ˈeɪ tri ə

This page provides all possible meanings and translations of the word Atrium

Random House Webster's College Dictionary

a•tri•umˈeɪ tri əm; ˈeɪ tri ə(n.)(pl.)a•tri•a; a•tri•ums.

  1. a usu. skylighted lobby or court, often several stories high, in an office building, hotel, etc. a central courtyard or patio open to the sky. the main or central room of an ancient Roman house, open to the sky at the center. a courtyard, flanked or surrounded by porticoes, in front of an early or medieval Christian church.

    Category: Architecture

  2. a cavity of the body. either of the two thin-walled upper chambers of the heart that receive blood from the veins and force it into the ventricles.

    Category: Anatomy

    Ref: Also called auricle.

Origin of atrium:

1570–80; < NL, L

a′tri•al(adj.)

Princeton's WordNet

  1. atrium(noun)

    any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)

  2. atrium(noun)

    the central area in a building; open to the sky

Wiktionary

  1. atrium(Noun)

    A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.

  2. atrium(Noun)

    A square hall lit by daylight from above, into which rooms open at one or more levels.

  3. atrium(Noun)

    Any enclosed body cavity or chamber

  4. atrium(Noun)

    An upper chamber of the heart that receives blood from the veins and forces it into a ventricle. In higher vertebrates, the right atrium receives blood from the superior vena cava and inferior vena cava, and the left atrium receives blood from the left and right pulmonary veins.

  5. atrium(Noun)

    A microscopic air sac within a pulmonary alveolus.

  6. atrium(Noun)

    A cavity inside a porate aperture of a pollen grain formed by the separation of the sexine and nexine layers, widening toward the interior of the grain.

  7. Origin: From ātrium (entry hall)

Webster Dictionary

  1. Atrium(noun)

    a square hall lighted from above, into which rooms open at one or more levels

  2. Atrium(noun)

    an open court with a porch or gallery around three or more sides; especially at the entrance of a basilica or other church. The name was extended in the Middle Ages to the open churchyard or cemetery

  3. Atrium(noun)

    the main part of either auricle of the heart as distinct from the auricular appendix. Also, the whole articular portion of the heart

  4. Atrium(noun)

    a cavity in ascidians into which the intestine and generative ducts open, and which also receives the water from the gills. See Ascidioidea

Freebase

  1. Atrium

    In architecture, an atrium is a large open space located within a building. Atria were a common featured in Ancient Roman dwellings, providing light and ventilation to the interior. Modern atria, as developed in the late 19th and 20th centuries, are often several stories high and having a glazed roof and/or large windows, and often located immediately beyond the main entrance doors. Atria are a popular design feature because they give their buildings a "feeling of space and light". Fire control is an important aspect of contemporary atrium design due to criticism that poorly designed atria could allow fire to spread to a building's upper stories more quickly.

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