耳栓
  じせん
  noun (common) (futsuumeishi)
  see: 耳当
  archaism
  earplug (traditional jewellery worn in the earlobe, popular in Jomon-period Japan)
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  耳栓
  みみせん
  noun (common) (futsuumeishi)
  earplug (for protection against noise or water)
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