Rarely used term for deficiency of niacinamide which may be associated with pellagra. ... Origin: G. A-priv. + niacinamide + -osis, condition ... (05 Mar 2000) ... 
Type: Term Pronunciation: ă-nī′ă-sin-am′i-dō′sis Definitions: 1. Rarely used term for deficiency of niacinamide that may be associated with pellagra.