1. Of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart)

See also: atrium

Encyclopedia: Atrial

• low relief
• low spirits
• low St Andrew's cross
• low status
• Low Sunday
• low temperature
• low tide
• low water
• low-altitude
• low-backed
• low-beam
• low-birth-weight baby
• low-birth-weight infant
• low-budget
• low-bush blueberry
• low-cal
• low-calorie diet
• low-carbon steel
• low-ceilinged
• low-class
• low-cost
• low-cut
• low-density
• low-density lipoprotein
• low-down