Pi'cro-phyll, n.
n. [Gr. πικρός, bitter, and φύλλον, leaf.] (Min.) A greenish-gray, foliated, fibrous mineral, consisting chiefly of the hydrous silicate of magnesia and iron. Dana.
n. [Gr. πικρός, bitter, and φύλλον, leaf.] (Min.) A greenish-gray, foliated, fibrous mineral, consisting chiefly of the hydrous silicate of magnesia and iron. Dana.