Ma'anar ƙamus na kalmar "aldose" wani nau'i ne na sukari wanda ya ƙunshi ƙungiyar aikin aldehyde. Aldoses wani nau'in monosaccharides ne, ko sukari masu sauƙi, waɗanda sune ainihin raka'a na carbohydrates. Suna da tsarin gaba ɗaya CnH2nOn, inda "n" ke wakiltar adadin ƙwayoyin carbon a cikin kwayoyin. Aldoses suna da mahimmanci a ilimin halitta kuma ana samun su a yawancin abinci, kamar 'ya'yan itatuwa da kayan marmari.