A pathological increase of albumin in urine excreted during the evening, a rarely observed event. ... Origin: L. Nox, night, + albuminuria ... (05 Mar 2000) ... 
(nok″tәl-bu″mĭ-nu´re-ә) albuminuria in urine secreted at night.
Type: Term Pronunciation: nok′tal-byū′mi-nyū′rē-ă Definitions: 1. A pathologic increase of albumin in urine excreted during the evening, a rarely observed event.
noctalbuminuria 1. The presence of excessive amounts of albumin in the urine secreted during the night.2. Presence of albumin only in night urine.