atrium
a·tri·um/ˈeɪ.tɹi.əm/noun
atrium is spelled A-T-R-I-U-M: 6 letters and 3 syllables (a·tri·um). It appears 1.3 times per million words in written English, the 24,745th most frequent word form (wordfreq, 2021 data). As a noun, atrium means “A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings” (English Wiktionary, September 2026). The plural of atrium is atria or atriums.
How many letters and syllables are in atrium?
| Letters | 6: A-T-R-I-U-M |
|---|---|
| Syllables | 3: a·tri·um |
| In writing | 1.3 times per million words; the 24,745th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is atrium?
Atrium appears 1.3 times per million words in written English, the 24,745th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce atrium?
- /ˈeɪ.tɹi.əm/
Atrium has 3 syllables, split a·tri·um in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-atrium.wav, Wikimedia Commons (author and licence on each file's page).
Forms of atrium
- atria plural
- atriums plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does atrium mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Atrium in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| Portuguese | átrio , aurícula |
| French | atrium , oreillette |
| German | Atrium |
| Spanish | atrio , aurícula |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does atrium come from?
From Latin ātrium (“entry hall”), from Etruscan.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).