冬虫夏草 とうちゅうかそう Also written ふゆむしなつくさ, トウチュウカソウ Meanings Noun caterpillar fungus (esp. Cordyceps sinensis) Kanji 冬 winter. Read as トウ. 虫 insect. Read as チュウ. 夏 summer 草 grass. Read as ソウ. Jinuma: Japanese Dictionary · Word lists