What does Atrium mean?

Definitions for Atrium
ˈeɪ tri əm; ˈeɪ tri əatri·um

This dictionary definitions page includes all the possible meanings, example usage and translations of the word Atrium.

Princeton's WordNet

  1. atriumnoun

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

  2. atriumnoun

    the central area in a building; open to the sky


  1. atriumnoun

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

  2. atriumnoun

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

  3. atriumnoun

    Any enclosed body cavity or chamber

  4. atriumnoun

    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. atriumnoun

    A microscopic air sac within a pulmonary alveolus.

  6. atriumnoun

    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. Etymology: From ātrium (entry hall)


  1. atrium

    An atrium is a large, open space located within a building that typically extends upwards through several floors. It may be covered or have a glass skylight to let in natural light. In architecture, the term originally referred to the open central court in Roman houses from which rooms led off. Atrium is also a term used in anatomy to refer to two upper chambers of the heart that receive blood from the veins and contract to force it into the ventricles.

Webster Dictionary

  1. Atriumnoun

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

  2. Atriumnoun

    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. Atriumnoun

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

  4. Atriumnoun

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

  5. Etymology: [L., the fore court of a Roman house.]


  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.

Chambers 20th Century Dictionary

  1. Atrium

    ā′tri-um, n. the entrance-hall or chief apartment of a Roman house. [Prob. orig. the kitchen, and so lit. 'the apartment blackened with smoke'—L. ater, black; others connect the word with ædes, orig. a fireplace, then a house, a temple.]

Editors Contribution

  1. atrium

    A space within the muscle of the heart.

    The heart has two atriums.

    Submitted by MaryC on March 16, 2020  


  1. Atrium

    a chamber just within the spiracle and before the occluding structure to the trachea.

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How to pronounce Atrium?

How to say Atrium in sign language?


  1. Chaldean Numerology

    The numerical value of Atrium in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of Atrium in Pythagorean Numerology is: 1

Examples of Atrium in a Sentence

  1. Ralph Zucker:

    If you come here on any given day, you might see a flash mob doing a dance routine, you'll see a ballet class, you'll see people playing a random pick-up game of basketball right in the middle of the atrium.

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Translations for Atrium

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"Atrium." Definitions.net. STANDS4 LLC, 2024. Web. 17 Jun 2024. <https://www.definitions.net/definition/Atrium>.

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