a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments
occurring or done each day; "a daily record"; "day-by-day labors of thousands of men and women"- H.S.Truman; "her day-after-day behavior"; "an every day occurrence"
measured by the day or happening every day; "a daily newspaper"; "daily chores"; "average daily wage"; "daily quota"
not capable of being precisely or readily described; not easily put into words; "an indefinable feeling of terror"; "an abstract concept that seems indefinable"
defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor"