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

• transmutableness
• transmutably
• transmutation
• transmutational
• transmutationist
• transmutationists
• transmutations
• transmutative
• transmute
• transmuted
• transmuter
• transmuters
• transmutes
• transmuting
• transnational
• transoceanic
• transom
• transomed
• transoms
• transom window
• transonic
• transonic barrier
• transonics
• transpacific
• transpadane