Dictionary

atrium en · NOUN

Pronunciation

• (Southern-England) audio
• /ˈeɪ.tɹi.əm/

Etymology

From Latin ātrium (“entry hall”), from Etruscan.

Meanings

1. A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.
2. A square hall lit by daylight from above, into which rooms open at one or more levels.
3. A cavity, entrance, or passage.
   • an atrium of the infundibula of the lungs
4. Any enclosed body cavity or chamber.
5. 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.
6. A microscopic air sac within a pulmonary alveolus.
7. 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.
   • Nexine 0.5μ thick, separating from the sexine about 5μ from the pore and forming a deep, well-defined atrium. 1965, Janet Kircher Warter, Palynology of a Lignite of Lower Eocene (Wilcox) Age from Kemper County, page 52:

Forms

Deriveds

dorsoatrium · subatrium · atrial · atriumed · atriate · preatrium

Holonyms

heart (chamber of the heart)

Meronyms

left atrium (chamber of the heart) · right atrium (chamber of the heart)

Synonyms

cavaedium (room in Roman homes)

Translations (91)

ja アトリウム (central room in Roman homes) · ms serambi jantung (one of two upper chambers of the heart) · hu átrium (square hall lit from above) · el κόλπος (body cavity) · fi eteinen (one of two upper chambers of the heart) · hy նախասիրտ (one of two upper chambers of the heart) · nl boezem (one of two upper chambers of the heart) · it cavedio (square hall lit from above) · ko 아트리움 (square hall lit from above) · mn тосгуур (one of two upper chambers of the heart) · ru а́триум (central room in Roman homes) · es aurícula (one of two upper chambers of the heart) · ro atriu (body cavity) · sl atrij (central room in Roman homes) · el κόλπος (one of two upper chambers of the heart) · fr atrium (square hall lit from above) · nl atrium (body cavity) · id atrium (body cavity) · cmn 心房 (one of two upper chambers of the heart) · pt aurícula (one of two upper chambers of the heart) · sv förmak (one of two upper chambers of the heart) · id atrium (central room in Roman homes) · ko 심방 (one of two upper chambers of the heart) · fi atrium (central room in Roman homes) · da atrium (central room in Roman homes) · da atrium (square hall lit from above) · pt átrio (body cavity) · mk а́триум (central room in Roman homes) · ga aitriam (body cavity) · ms atrium (one of two upper chambers of the heart) · kmr guhikeya dil (one of two upper chambers of the heart) · pl atrium (one of two upper chambers of the heart) · ko 아트리움 (central room in Roman homes) · hu átrium (central room in Roman homes) · id serambi jantung (one of two upper chambers of the heart) · ca atri (central room in Roman homes) · pt átrio (one of two upper chambers of the heart) · pt átrio (central room in Roman homes) · ca atri (square hall lit from above) · de Atrium (one of two upper chambers of the heart) · ru а́трий (square hall lit from above) · da forkammer (one of two upper chambers of the heart) · ca aurícula (one of two upper chambers of the heart) · cy atriwm (one of two upper chambers of the heart) · sl atrij (square hall lit from above) · pl przedsionek (one of two upper chambers of the heart) · ru а́трий (central room in Roman homes) · id atrium (one of two upper chambers of the heart) · la cavaedium (square hall lit from above) · cs předsíň (body cavity) · fi atrium (square hall lit from above) · tl silid-anuran (one of two upper chambers of the heart) · ro atrium (square hall lit from above) · cmn 天井 (square hall lit from above) · pl atrium (square hall lit from above) · hu szívpitvar (one of two upper chambers of the heart) · sh atrij (central room in Roman homes) · de Atrium (square hall lit from above) · ja 心房 (one of two upper chambers of the heart) · ja アトリウム (square hall lit from above) · la ātrium (central room in Roman homes) · pt átrio (square hall lit from above) · ar أُذَيْن (one of two upper chambers of the heart) · tr kulakçık (one of two upper chambers of the heart) · nl boezem (body cavity) · ru а́триум (square hall lit from above) · mn ᠲᠣᠰᠭᠠᠭᠤᠷ (one of two upper chambers of the heart) · fi valopiha (square hall lit from above) · kmr guhik (square hall lit from above) · bg ухо на предсърдието (one of two upper chambers of the heart) · da atrium (one of two upper chambers of the heart) · ru предсе́рдие (one of two upper chambers of the heart) · sv atrium (one of two upper chambers of the heart) · uk передсе́рдя (one of two upper chambers of the heart) · pl atrium (central room in Roman homes) · el αίθριο (square hall lit from above) · fr oreillette (one of two upper chambers of the heart) · mk а́триум (square hall lit from above) · fi ontelo (body cavity) · hu pitvar (one of two upper chambers of the heart) · he עלייה (body cavity) · ta அறை (square hall lit from above) · kmr guhike (one of two upper chambers of the heart) · cs atrium (central room in Roman homes) · pt aurícula (body cavity) · oc atri (central room in Roman homes) · id beranda (central room in Roman homes) · bg а́триум (central room in Roman homes) · da gårdhave (central room in Roman homes) · tr atriyum (central room in Roman homes) · es atrio (square hall lit from above)