n.1.(Zool.) One of the thoracic legs of a crustacean. See Illust. of Crustacea.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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 second region, the peraeon, of 7 segments, each with a pair of legs (peraeopods) and third region, pleaon, of 6 segments with pair of pleopods, except the last which together with biramous uropods form a swimming tail pleotelson [15].
A silk-like substance secreted from the third and fourth peraeopods (walking legs) is used as an adhesive.