Relating to or characteristic of Lake Champlain or the Champlain Valley region.
From Champlain (the lake/region) + -ic (suffix from Latin -icus meaning 'relating to'). Geographic features commonly take the -ic suffix to create adjectives.
Geographic adjectives like 'champlainic' reveal how place names become fixed in geology, ecology, and regional identity—the lake's name is so embedded in the landscape that geologists use 'Champlainic' to describe an entire geological age!
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