atrium /äˈ or āˈtri-əm or -ŭm/

1. The entrance hall or chief apartment of an ancient Roman house
2. A church forecourt or vestibule
3. A central courtyard (architecture)
4. A cavity or entrance (zoology and anatomy)
5. Specif either of the two upper cavities of the heart into which blood passes from the veins

• clownishnesses
• clowns
• clown's woundwort
• clows
• cloxacillin
• cloxacillins
• cloy
• cloye
• cloyed
• cloyes
• cloying
• cloyingly
• cloyless
• cloyment
• cloyments
• cloys
• cloysome
• clozapine
• clozapines
• cloze
• cloze test
• CLP
• CLR
• CLT
• club