Definify.com
Webster 1913 Edition
Astragal
As′tra-gal
,Noun.
[L.
astragalus
, Gr. [GREEK] the ankle bone, a molding in the capital of the Ionic column.] 1.
(Arch.)
A convex molding of rounded surface, generally from half to three quarters of a circle.
2.
(Gun.)
A round molding encircling a cannon near the mouth.
Webster 1828 Edition
Astragal
AS'TRAGAL
,Noun.
1.
In architecture, a little round molding which surrounds the top or bottom of a column, in the form of a ring; representing a ring or band of iron, to prevent the splitting of the column. it is often cut into beads or berries, and is used in ornamented entablatures to separate the several faces of the architrave.2.
In gunnery, a round molding on cannon near the mouth.3.
In anatomy, the buckle, ankle, or sling bone; the upper bone of the foot supporting the tibia.4.
In botany, the wood pea; the milk vetch; the liquorice vetch.