herpetologist

noun

her·​pe·​tol·​o·​gist ˌhərpəˈtäləjə̇st 

plural -s

: a specialist in herpetology

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Kids Definition

herpetologist

noun

her·​pe·​tol·​o·​gist

ˌhər-pə-ˈtäl-ə-jəst

: a person who specializes in herpetology