/gril'oh blat"id/ , n.
a primitive insect of the order Grylloblattidea, having a soft, unpigmented wingless body with long antennae and no eyes, living under stones in moderately high mountains of the western U.S., Japan, and the U.S.S.R.
[ Grylloblattidae a family of the order, equiv. to Grylloblatt ( a ) a genus (L grill ( us ) cricket + NL -o- -O- + L blatta cockroach) + -idae -ID 2 ]