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Kotomora

マイナスイオン

マ
イ
ナ
ス
イ
オ
ン

Meanings

1

noun

negative ion; anion

Wasei-eigo term for negative ions, often associated with health benefits in popular culture. In scientific contexts, 陰イオン (in-ion) is preferred.

wasei-eigo (Japanese-coined English), from minus ion