Living or dwelling in river habitats; inhabiting rivers and riverine environments.
From Latin fluvius (river) + -coline (suffix meaning dwelling in or inhabiting, from Latin colere to inhabit). This combining form appears in words like calcicoline (lime-loving) and salicoline (salt-loving).
The -coline suffix is a secret language used by biologists—once you know it, you can decode habitat preferences instantly. A fluvicoline organism's entire life story is written in that one word.
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