gnaw on

gnaw on something

to chew on something. (Usually said of an animal.) The puppy has been gnawing on my slippers! This slipper has been gnawed on!
See also: gnaw, on

gnaw on

v.
1. To bite or chew on something, either without eating it or removing small pieces of it a bit at a time: The dog has been gnawing on that bone for days.
2. To cause someone or something to have or feel persistent discomfort, anxiety, or guilt: Unpleasant dreams gnawed on me all night and I couldn't sleep.
See also: gnaw, on
References in periodicals archive ?
This means that they need things they can gnaw on to wear their teeth down, or they can grow into the skin, causing pain.
The scientists trained the fish to gnaw on a little bead hanging on a filament in the water.
Secondly provide all rodents with wood from fruit trees to gnaw on, making sure that the wood has not been treated with any pesticides.
Three female Rattus norvegicus (domestic Norway rats - relatively recent immigrants to the United States) were kept to see whether captive rodents will gnaw on rocks, and if so, how often.
In May 1999, a piece of Plattsmouth Limestone from the University of Kansas campus in Lawrence was placed against the wall of an apartment building just outside of campus, to see whether any wild rodents would chance to come and gnaw on it.
Rodents may gnaw on rocks for various reasons, including need for minerals, need to wear down the teeth, or need to release stress.
Thus far, no studies of this type of behavior have been made; and further study is needed to determine the reasons why wild rodents gnaw on rocks, and the role carbonate rocks play in the ecology of Indiana rodents.
To be a friend so that his loneliness wouldn't gnaw on him as bad as my mine did.
Besides willows, beavers feed on the succulent leaves and buds from aspen, maple, birch and beech trees and also gnaw on the base of the trees, Brennan said.