In Ayurvedic medicine: one of the three humours (or doshas) in the body, made up of the elements water and earth and responsible for water, mucus, and other fluids in the body. Also attributive, especially designating a person in whom this humour is dominant, or the consequent physiological and psychological dispositions or characteristics.
Sources which translate the Sanskrit word typically use the terms ‘mucus’ or ‘phlegm’ to refer to this humour.
1930s; earliest use found in Cultural Heritage of India. From Sanskrit kapha phlegm.