• (a.) Having numerous facets; -- said of the compound eyes of insects and crustaceans.
Pol`y·me·nis'cous adjective [ See Poly- , and Meniscus .] (Zoology) Having numerous facets; -- said of the compound eyes of insects and crustaceans. 
polymeniscous Having numerous facets; said of the compound eyes of insects and crustaceans. Meniscus as observed in nature To a tiny insect, a pond's still surface can present a challenging waterscape. To move from water to land, a water-walking creature may have to scale a steep, slippery ...