Relating to or connected with the epistoma, the region of an insect's head near the mouth.
Derived from 'epistoma' plus the Latin suffix '-al' (relating to), this adjective form allows scientists to describe features or characteristics of that specific head region.
When scientists study insects under microscopes, they use hundreds of super-specific adjectives like this to describe tiny body parts—it's like having a secret language for the microscopic world.
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