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

• pedlar
• pedlaries
• pedlars
• pedlary
• pedo-
• pedogenic
• pedological
• pedologies
• pedologist
• pedologists
• pedology
• pedometer
• pedometers
• pedrail
• pedrails
• pedrero
• pedro
• peds
• peduncle
• peduncles
• peduncular
• pedunculate
• pedunculated
• pee
• peece