The act or process of fluttering; a state of nervous agitation or excitement; the rapid, trembling movement characteristic of flutter.
From 'flutter' plus '-ation' (Latin suffix forming nouns from verbs). The '-ation' suffix is extremely productive for creating abstract nouns from verbs.
'Flutteration' shows how English can nominalize almost any verb—we turn actions into abstract concepts (flutter→flutteration, create→creation, exist→existence), which lets us think about ideas rather than just actions.
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