Relating to a heart chamber
I believe the answer is:
atrial
(Other definitions for atrial that I've seen before include "Like main court" , "Lariat (anag)" , "referring to Chambers?" , "of the heart cavities" , "Like some courts" .)
I believe the answer is:
atrial
(Other definitions for atrial that I've seen before include "Like main court" , "Lariat (anag)" , "referring to Chambers?" , "of the heart cavities" , "Like some courts" .)