無的英語翻譯：

naught; nonexistence; not; nothing; without; lack; zero
【醫(yī)】 a-; leipo-; lipo-; non-

定形的英語翻譯：

figuration; setting; shape

膜的英語翻譯：

film; membrane; theca; velamen; velum
【化】 membrane
【醫(yī)】 coat; envelope; film; lemma; membranae membranae; membranae membrane
panniculus; theca; thecae; tunic; tunica; velamen; velamenta
velamentum