1. having a sharp point or sting; armed with a small sharp spine or prickle
Usage: chiefly botanical and zoological
2. of or relating to insects of the order Aculeata, which includes bees, wasps, and ants
Usage: entomological

Examples

• The aculeate leaves of the holly plant provide natural protection from herbivores.
• Bees and wasps are aculeate insects equipped with stinging apparatus.
• The cactus has aculeate spines that deter animals from eating it.
• Aculeate members of the Hymenoptera order are known for their defensive behavior.
• The rose stem is covered with small aculeate prickles.