| Noun | 1. | horsebean - seed of the broad-bean plant broad-bean, broad-bean plant, English bean, European bean, field bean, Vicia faba, broad bean - Old World upright plant grown especially for its large flat edible seeds but also as fodder bean - any of various seeds or fruits that are beans or resemble beans |
| 2. | horsebean - large shrub or shrubby tree having sharp spines and pinnate leaves with small deciduous leaflets and sweet-scented racemose yellow-orange flowers; grown as ornamentals or hedging or emergency food for livestock; tropical America but naturalized in southern United Statesgenus Parkinsonia, Parkinsonia - small genus of spiny shrubs or small trees |