A person who specializes in or advocates for the use of analgesics; a practitioner focused on pain management or pain relief.
From analgesia/analgesic + -ist (one who practices or specializes in). The suffix -ist creates agent nouns for people practicing a profession or art.
While 'analgesist' is grammatically valid, doctors today prefer terms like 'pain management specialist.' Language shows us which professions are modern and which are old—we have therapists and journalists, but rarely see analgesists!
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