noun🔗ShareالكولوديونA syrupy solution of pyroxylin in alcohol and ether that evaporates on a surface to form a clear elastic film; used in surgical dressings, photographic plates and lacquer paints."The old-fashioned photographer used collodion to coat the glass plates before taking a picture. "استخدم المصور القديم الكولوديون لتغطية الألواح الزجاجية قبل التقاط صورة.medicinematerialsubstancechemistrytechnicalscienceChat with AIVocabulary GamePractice Reading