What is another word for bitten into?
Pronunciation: [bˈɪtən ˌɪntʊ] (IPA) 
The phrase "bitten into" refers to the action of forcefully breaking the surface of something with teeth, leaving visible indentations. Some common synonyms for this phrase include "chewed into," "nibbled on," or "gnawed at." These terms all convey a sense of physical action and force, suggesting that the subject has attempted to consume or manipulate the object in some way. Other similar phrases expressing the same idea may include "broken into," "into the flesh," and "pierced through." All of these phrases are useful for describing the physical actions taking place, and can be employed in a variety of contexts from describing food to discussing injuries.
