How to say "membrane" in Japanese

Choosing the right word
  • 膜まくJLPT N1approx.Common
    nounThe broad, basic word for a membrane or thin film, covering biological membranes such as cell and mucous membranes as well as thin sheets of material in general. This is usually the word you want.
  • 被膜ひまくCommon
    nounEmphasizes the membrane as a coating or covering enclosing something, so it suits medical or anatomical talk about protective membranes around organs. A narrower choice than 膜 rather than a free synonym.

Use 膜 for a membrane as a thin sheet of tissue or material, and 被膜 when the membrane is specifically a covering or coating wrapped around something, especially in medical or biological contexts.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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