Resembling or characteristic of the sucker fish family, particularly in having the downward-pointing mouth structure used for bottom feeding.
Derived from Catostomidae with the suffix '-oid' (Greek 'eidos', meaning resembling). This adjective form indicates something has the defining features of the sucker family without necessarily being one.
When scientists call something '-oid,' they're saying 'it looks like this thing, acts like this thing, but might not actually be this thing'—it's how scientists describe cousins and look-alikes in the animal kingdom!
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