sesquipedalian (Adjective) — Given to the overuse of long words. ex. "sesquipedalian orators" ex. "this sesquipedalian way of saying one has no money"
sesquipedalian (Adjective) — (of words) long and ponderous; having many syllables. ex. "sesquipedalian technical terms"
sesquipedalian (Noun) — A very long word (a foot and a half long).