ATRIUM
atrium
(noun) the central area in a building; open to the sky
atrium
(noun) any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
Source: WordNet® 3.1
Etymology
Noun
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.
(architecture) A square hall lit by daylight from above, into which rooms open at one or more levels.
(anatomy) A cavity, entrance, or passage.
(anatomy) One of two upper chambers of the heart.
(biology) Any enclosed sexine and nexine layers, widening toward the interior of the grain.
Synonyms
• (room in Roman homes): cavaedium
Meronyms
• (chamber of the heart): left atrium, right atrium
Holonyms
• (chamber of the heart): heart
Anagrams
• Timaru
Source: Wiktionary
A"tri*um, n.; pl. Atria. Etym: [L., the fore court of a Roman house.]
1. (Arch.)
(a) A square hall lighted from above, into which rooms open at one or
more levels.
(b) 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.
2. (Anat.)
Definition: The main part of either auricle of the heart as distinct from
the auricular appendix. Also, the whole articular portion of the
heart.
3. (Zoöl.)
Definition: A cavity in ascidians into which the intestine and generative
ducts open, and which also receives the water from the gills. See
Ascidioidea.
Source: Webster’s Unabridged Dictionary 1913 Edition