increased pressure in the eyeball due to obstruction of the outflow of aqueous humor; damages the optic disc and impairs vision (sometimes progressing to blindness)
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
a doctrine that is believed to be of great importance; "Newton's writings were gospel for those who followed"
the four books in the New Testament (Matthew, Mark, Luke, and John) that tell the story of Christ's life and teachings
an unquestionable truth; "his word was gospel"
folk music consisting of a genre of a cappella music originating with Black slaves in the United States and featuring call and response; influential on the development of other genres of popular music (especially soul)