crystalline /ˈkɹɪs.tə.lɪn/adjective 4noun 2forms 3 adjective4 •Of, relating to, or composed of crystals. •Having a regular three-dimensional molecular structure. •Resembling crystal in being clear and transparent •Pure. noun2 •(no longer used) Any crystalline substance. •(no longer used) Aniline. formscrystallines · more crystalline · most crystalline
