Definitions

1. adjective

given to biting or nibbling, especially in a persistent or annoying manner

“The mordicant mouse gnawed at the old wooden beam.”

2. noun

a person or thing that bites or nibbles in a persistent or annoying manner

“The mordicant in the library was eating through the pages of a rare book.”

3. verb

to bite or nibble in a persistent or annoying manner

“The mordicant verb is often used to describe pests that damage property.”