I. The hair, collect., Plin. 16, 10, 16, § 38; esp. false hair, a peruke, Suet. Calig. 11; Petr. 110, 5, Tert. Cult. Fem. 7.—
II. Transf.
A. The hairy threads or fibres of the roots or leaves of plants, etc.: “capillamenta vitis,” Sen. Ep. 86, 20: “seminum,” Col. 4, 11, 1; 4, 22, 4: “radicum,” Plin. 19, 6, 31, § 99; 27, 12, 80, § 105.—