Shirabe
  • noun (common) (futsuumeishi)
English JMdict (multilingual)
1
noun (common) (futsuumeishi) word usually written using kana alone Indian soapberry (Sapindus mukorossi);Chinese soapberry;washnut;soapnut tree
The feathered balls you hit with a battledore are the seeds of a large tree called 'soapberry'.

漢字 kanji used