As adjectives the difference between graminivorous and gramenivorous
is that graminivorous is (entomology) that eats grasses and seeds while gramenivorous is .
graminivorous
English
Adjective
(
en adjective)
(entomology) That eats grasses and seeds.
Usage notes
* Although the term was formerly more widely used (e.g. of grazing animals), it is now restricted to insects, as most such animals are better termed (herbivorous).