Dec 5, 2015 · In an ancient Roman house, an atrium was an open central court that contained the impluvium, a basin where rainwater collected. It originally contained the hearth and functioned …

atrium noun [C] (HEART) anatomy specialized (also auricle) one of the two spaces at the top part of the heart that receive blood from the veins and push it down into the ventricles (= lower …

An atrium is a part of a building such as a hotel or shopping centre, which extends up through several floors of the building and often has a glass roof.

Atrium definition: the main or central room of an ancient Roman house, open to the sky at the center and usually having a pool for the collection of rainwater.. See examples of ATRIUM …

Nov 8, 2025 · atrium (plural atria or atriums) (architecture) A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.

Definition of atrium noun from the Oxford Advanced Learner's Dictionary. a large high space, usually with a glass roof, in the centre of a modern building. The reception was held in the …

Anatomy A body cavity or chamber, especially either of the upper chambers of the heart that receives blood from the veins and forces it into a ventricle. Also called auricle. [Latin ātrium; …

ATRIUM meaning: 1 : an open area inside a tall building that has windows to let light in from above; 2 : one of two sections of the heart that take in blood from the veins

If you're in the atrium of a building, you're in a large central space, often one that's open and airy. You might arrange to meet a friend in the museum's atrium because of its central location and …

atrium, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary