\Mil"le*pore\ (m[i^]l"l[-e]*p[=o]r), n. [L. mille
thousand + porus pore: cf. F. mill['e]pore.] (Zo["o]l.)
Any coral of the genus Millepora, having the surface nearly
smooth, and perforated with very minute unequal pores, or
cells. The animals are hydroids, not Anthozoa. See
{Hydrocorallia}.