We found one dictionary that defines the word hyperserotonergic:

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1. hyperserotonergic: Wiktionary

Definitions from Wiktionary (hyperserotonergic) ▸ adjective:  More than normally serotonergic ▸ Words similar to hyperserotonergic ▸ Usage examples for hyperserotonergic ▸ Idioms related to hyperserotonergic ▸ Wikipedia articles (New!) ▸ Popular nouns described by hyperserotonergic ▸ Words that often appear near hyperserotonergic ▸ Rhymes of hyperserotonergic ▸ Invented words related to hyperserotonergic