Search tocopherolquinone (TQ) tocopherolquinone (TQ) /tōkof′ərōlkwī″nōn/ , an oxidized form of tocopherol, or vitamin E. Tweet Telegram VK Random Words glycosylated hemoglobin (GHb, GHB) test stereoisomer eccentric contraction infantile Achard-Thiers syndrome ultracentrifuge presenile LOC gnathodynia