脳細胞 のうさいぼう Meanings Noun brain cell Kanji 脳 brain. Read as ノウ. 細 fine. Read as サイ. 胞 cell. Read as ホウ. Words containing 脳細胞 灰色の脳細胞 (はいいろののうさいぼう) little grey cells (in reference to Hercule Poirot's catchphrase) Jinuma: Japanese Dictionary · Word lists