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

aˈtrial adjective

• squall line
• squall lines
• squalls
• squally
• squaloid
• Squaloidea
• squalor
• squalors
• squama
• squamae
• Squamata
• squamate
• squamation
• squamations
• squame
• squamella
• squamellas
• squames
• squamiform
• squamosal
• squamosals
• sabbatise
• sabbatised
• sabbatises
• sabbatising