Peltate: shield- or target-shaped.
Penal claspers: in Proctytripidae. lateral fringed processes of the male genitalia.
Penal sheath: the horny outer covering of the penis.
Pencil: a little, elongated brush of hair: in Diptera, applied to a group of sensory hairs on the flagellum of the antenna.
Pendent: hanging down.
Pendulous: drooping: hanging free, attached to one end only.
Penes: open, slit-like structures of the seminal vesicles to the outer surface in Euplectoptera.
Penicillate: with a long, flexible brush or pencil of hair: often at the end of a thin stalk.
Penicilli: a pair of small style or cerci-like pieces on the tip of the 8th dorsal segment of abdomen of various male Hymenoptera.
Penicilliform: pencil-like or shaped.