noun
Usage: usually capitalized J
1. : christ's-thorn
2. : a large shrub or shrubby tree ( Parkinsonia aculeata ) that is native to tropical America but naturalized in the southern and southwestern U.S., that has pinnate leaves with small deciduous leaflets, sharp spines, and showy racemose yellow flowers, and that is used for hedging and as emergency food for livestock especially in dry regions — called also horsebean
3. : catechu 2