[as-truh-guh
l] 
| 1. | a small convex molding cut into the form of a string of beads. Compare bead and reel. |
| 2. | a plain convex molding; bead. |
| 3. | a molding attached to one or both meeting stiles of a pair of double doors in order to prevent drafts. |
as·tra·gal (ās'trə-gəl)  (click for larger image in new window) n. A narrow convex molding often having the form of beading. [Latin astragalus, from Greek astragalos; see ost- in Indo-European roots.] |