ˈbōrə(r), ˈbȯr- noun
( -s )
Etymology: Middle English, from boren to bore + -er, -ere -er, from Old English -ere — more at bore , -er I
1. : one that bores: as
a. : a worker who bores holes
b. : a tool (as a drill) used for boring
2. : any of various animals that burrow in wood or other substances: as
a. : shipworm
b. : any of various bivalve mollusks (as those of the genera Saxicava and Lithophaga ) that bore in limestone rock — compare piddock
c. : drill V 4a
d. : any of numerous insects of different orders (as Lepidoptera and Coleoptera) that as larva or adult bore in the woody parts (as bark, stem or roots) of plants
3. : hagfish
4. : accretion borer