Atrabiliary \At`ra*bil"ia*ry\, a.

1. Of or pertaining to atra bilis or black bile, a fluid formerly supposed to be produced by the kidneys.

2. Melancholic or hypohondriac; atrabilious; -- from the supposed predominance of black bile, to the influence of which the ancients attributed hypochondria, melancholy, and mania.

Atrabiliary arteries, capsules, and veins (Anat.), those pertaining to the kidney; -- called also renal arteries, capsules, and veins.

Source: Webster's Revised Unabridged Dictionary (1913)