sterile; free of germs or microorganisms; an aseptic condition (term used in medical and laboratory contexts).
手術室は常に無菌環境に保たれている。
Operating rooms are always kept in a sterile environment.
無菌の器具を使って処置を行った。
They performed the procedure using sterile instruments.
この試験は無菌条件でなければ結果が影響を受ける。
This experiment must be conducted under sterile conditions or the results will be affected.