A colloquial or informal shortening of entomologist; a scientist who studies insects.
From entomol- (combining form of entomology) + -ol (short form suffix). This abbreviation appears in 20th-century scientific literature as a casual variant, though it never achieved widespread adoption.
Even though 'entomol' never caught on as a standard abbreviation (scientists stuck with 'entomologist'), it shows how specialists create shorthand in their own communities—linguists are entomols of language, in a way!
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