1. sercon - Noun
2. sercon - Adjective
(dated, fandom slang) Having a serious intellectual approach to science fiction; literary; scholarly; studious.
(dated, fandom slang, derogatory) Taking science fiction too seriously; boring; pompous; self-important.
(dated, fandom slang) A sercon fan; a fan interested in intellectual, rather than fannish, matters.
(dated, fandom slang) A sercon activity; a serious and scholarly activity.
Source: en.wiktionary.org