Answer: atrial

AnswerCrossword Clue
ATRIALOn -- basis (for testing out)
atrialpertaining to an atrium (a central courtyard)
atrialenclosed court in a building
atrialeither of two upper chambers of the heart
ATRIAL... fibrillation (abnormal heart rhythm)
ATRIALKind of fibrillation
ATRIALLike some fibrillation
ATRIALOn ... basis (for trying out)
ATRIALOn ... basis (for testing purposes)
ATRIALOn ... basis
ATRIALHaving an open courtyard
ATRIALHearty, in a way
ATRIALOn .. basis
ATRIALLike some chambers
ATRIALLike part of the heart
ATRIALHaving a courtyard
ATRIALOf Roman rooms
ATRIAL... septal defect (heart problem)
ATRIALOf a heart chamber
ATRIALOf a heart part
ATRIALOf a body chamber
ATRIALOf an upper heart chamber
ATRIALConcerning a heart chamber