n.1.(Zool.) One of the thoracic legs of a crustacean. See Illust. of Crustacea.
References in periodicals archive ?
We slide-mounted antenna, male pleopods one and two, and male peraeopod seven in glycerin for microscopic examination.
medcofi by radically dissimilar pleopods and peraeopod seven (Schultz, 1976).
A silk-like substance secreted from the third and fourth peraeopods (walking legs) is used as an adhesive.