n. stove or other heating device. heath n. 1 area of flattish uncultivated land with low shrubs. 2 plant growing on a heath, esp. heather. [Old English] heathen thi:8(a)n/ n. 1 person not belonging to a predominant religion, esp. not a Christian, Jew, or Muslim. 2 person regarded as lacking culture or moral principles. adj. 1 of heathens. 2 having no religion. [Old English] heather Theda(r)/ n. any of various shrubs growing esp. on moors and heaths. [origin unknown]