n. A slender pointed instrument; a stiletto.n. In surgery, the perforator of a trocar; the stiffening wire or rod in a flexible catheter; sometimes, a probe. Also stilette.n. In zoology, a little style; also, a style; specifically, in entomology, one of the second of the t hree pairs of rhabdites or appendages of the abdominal sternites entering into the formation of the ovipositor. See cut under Arctisca.n. Specifically— Same as cercopod. Compare style, 2 .n. In fishes, one of the slender rays of bone on or above the base of the ribs; the epipleural.