Sĕpt'-foil, n.
n. [From Fr. sept, Lat. septem, seven, and Fr. foil, Lat. folium, leaf.]
Sense 1. (Bot.) A plant of the genus Tormentilla (T. officinalis), the roots of which are sometimes used in tanning and dyeing leather, and in dyeing worsted yarn, and also in medicine, being powerfully astringent.
Sense 2. A typical figure, consisting of seven equal segments of a circle, used in the Roman Catholic church to denote the number of its sacraments, the gifts of the Holy Ghost, &c. Fairholt.