Consuming; wasting.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)

Usage examples:

The birds and beasts, with wild cries, were devouring their prey.
- Peter Stuyvesant, the Last Dutch Governor of New Amsterdam by John S. C. Abbott
" In the Abbot's Wood," replied her husband, a fat, small round- faced man, who was methodically devouring a large breakfast.
- Red Money by Fergus Hume
On the river bank huge old cottonwoods, worn and leaning, offered the only shadow in a land flooded with vehement, devouring light.
- The Eagle's Heart by Hamlin Garland