Ma'anar ƙamus na kalmar "glucose" shine sukari mai sauƙi wanda shine tushen tushen kuzari ga halittu masu rai. Wani nau'i ne na carbohydrate da ake samu a yawancin abinci, ciki har da 'ya'yan itatuwa, kayan lambu, da hatsi. Glucose kuma jiki ne ke samar da shi yayin aikin narkewar abinci kuma ana jigilar shi ta cikin jini don amfani da shi azaman mai ta sel a cikin jiki. A cikin sharuddan sinadarai, glucose monosaccharide ne tare da dabarar C6H12O6.