completism

== English == === Etymology === From complete +‎ -ism. Originally from fanspeak, the slang of science fiction fans. === Noun === completism (uncountable) A desire to obtain a complete collection of some type of thing. ==== Related terms ==== completist === References === Jeff Prucher, editor (2007), “completism”, in Brave New Words: The Oxford Dictionary of Science Fiction, Oxford, Oxfordshire; New York, N.Y.: Oxford University Press, →ISBN, page 25. Jesse Sheidlower, editor (2001–2026), “completism n.”, in Historical Dictionary of Science Fiction.