1. a rod, inscribed with the name of Aaron, that miraculously blossomed and yielded almonds. Num. 17:8. Previously, the rod had changed into a serpent. Ex. 7:10.
2. any of various plants having a tall, flowering stem, as the goldenrod or mullein.
3. a smooth-stemmed herb, Thermopsis caroliniana, found from North Carolina to Georgia, having yellow flowers in stiffly erect clusters and hoary pods.
4. Archit.a convex molding having regularly spaced representations of leaves or scrollwork.