Relating to, resembling, or having the nature of a haustellum or haustella; characterized by sucker-like feeding structures.
From Latin 'haustellum' plus the adjective suffix -ous, meaning having the quality or nature of the named thing.
'Haustellous' is the scientific adjective for anything resembling those parasitic sucking-mouths—it's a rarely used word that proves scientists have Latin terms for describing almost anything biological.
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