The Collaborative International Dictionary of English v.0.48:

Danaide \Da"na*ide\ (d[=a]"n[.a]*[imac]d), n. [From the mythical
   Danaides, who were condemned to fill with water a vessel full
   of holes.] (Mach.)
   A water wheel having a vertical axis, and an inner and outer
   tapering shell, between which are vanes or floats attached
   usually to both shells, but sometimes only to one.
   [1913 Webster]