astragal

plural astragals

1. anatomySynonym of anklebone: the bone forming the ball of the ankle joint.

   Synonyms: anklebone

2. A die, especially a four-sided die historically made from or in imitation of an ankle bone.

   For quotations using this term, see Citations:astragal.

3. architectureA semicircular molding separating the architrave at the top or bottom of a column.
4. A tool used to mold such features; similar tools used for connecting panes of glass in a window.
5. engineeringA circular molding near the mouth of a cannon.
6. biologySynonym of milkvetch: a plant of the genus Astragalus.

   Synonyms: milkvetch

7. architectureA molding attached to double doors to prevent drafts.
8. roof plumbingA bracket used to fix downpipes to the wall of a building.