The Collaborative International Dictionary of English v.0.48:

Gymnopaedic \Gym`no*p[ae]d"ic\ (j[i^]m`n[-o]*p[e^]d"[i^]k or
   j[i^]m`n[-o]*p[=e]"d[i^]k), a. [Gr. gymno`s naked + pai^s,
   paido`s, a child.] (Zool.)
   Having young that are naked when hatched; psilop[ae]dic; --
   said of certain birds.
   [1913 Webster]