prickle [prickles](A small, sharp pointed object, such as a thorn) noun [UK: ˈprɪk.l̩] [US: ˈprɪk.l̩]
stinger [stingers](pointed portion of an insect) noun [UK: ˈstɪŋə(r)] [US: ˈstɪŋər]A wasp stuck its stinger in my arm. = Una avispa me clavó el aguijón en el brazo.