A person who is an expert in or specialist of Arctic affairs, climate, or ecology.
From 'arctic' plus '-ician' suffix (similar to 'physician' or 'musician') denoting a person with expertise. The suffix implies professional knowledge and specialization.
The '-ician' suffix is reserved for people with serious expertise—we don't say 'magicician,' we say 'magician,' and an arctician has spent years studying polar regions!
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