entomo-

American  

1. a combining form meaning “insect,” used in the formation of compound words.

   entomology.

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entomo- British  

combining form

1. indicating an insect

   entomology

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Etymology

Origin of entomo-

Combining form of Greek éntomos notched, éntoma (noun use of neuter plural) insects, verbid of entémnein to cut in or up, equivalent to en- en- ² + tómos cut; see -tomy