英:[ə'kju:lɪəs]
美:[ə'kjulɪrs]
英:[ə'kju:lɪəs]
美:[ə'kjulɪrs]
复数:aculei
皮刺
borrowed from New Latin, going back to Latin, "stinger, spine (of a fish), sharp point, barb," from acū-, stem of acus "needle" + -leus, noun suffix (perhaps originally diminutive)
The first known use of aculeus was in 1702