1911 Encyclopædia Britannica/Astragal
|←Astraea||1911 Encyclopædia Britannica, Volume 2
|See also Astragal on Wikipedia, and our 1911 Encyclopædia Britannica disclaimer.|
ASTRAGAL (from the Gr. ἀστράγαλος, the ankle-joint), an architectural term for a convex moulding. This term is generally applied to small mouldings, "torus" to large ones of the same form. The Lesbian astragal referred to by Vitruvius, bk. iv. ch. vi., was in all probability an astragal carved with a bead and reel enrichment.