erose

adjective

i-ˈrōs 

: irregular, uneven

specifically : having the margin irregularly notched

an erose leaf

Word History

Etymology

Latin erosus, past participle of erodere

First Known Use

1793, in the meaning defined above

Medical Definition

erose

adjective

i-ˈrōs 

: having the margin irregularly notched as if gnawed

an erose edge of a bacterial colony