noun, masculine/ˈlabɾo/plural: labros
upper lip of the mouths of insects, very apparent in chewing insects, and sometimes confusing or modified in others; lip
“El labro de algunos insectos es muy prominente y ayuda en la masticación.” — The upper lip of some insects is very prominent and helps in chewing.
Synonyms: labio
From Latin labrum, meaning "lip".