heptaoxid التعريفات والمعاني == Romanian == === Etymology === Borrowed from French heptoxyde. === Noun === heptaoxid m (plural heptaoxizi) (inorganic chemistry) heptoxide ==== Declension ==== شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة heptaoxide heptaoxides heptaoxo heptoxide heptakaidecahedron heptaoxodisilicate heptagrid heptanoid heptagrids