| Astragal 1. (n.) A convex molding of rounded surface, generally from half to three quarters of a circle. 2. (n.) A round molding encircling a cannon near the mouth. Thesaurus Entries abacus, acanthus, annulet, apophyge, architrave, astragal, beading, beak, bell, billet, boss, capstone, cartouche, cavetto, cima, cinquefoil, conge, console, coping, corbel, cornice, crown, cusp, cyma, dentil, drip, drop, fascia, fillet, finial, foil, fret, frontispiece, head, header, headpiece, keystone, lintel, listel, molding, ovolo, patera, pendant, quatrefoil, reed, sconce, splay, taenia, terminal, torus, treenail, trefoil, tympanum, volute |