精細 せいさい Meanings な-adjective, Noun fine; minute; detailed; meticulous; precise Kanji 精 spirit. Read as セイ. 細 fine. Read as サイ. Words containing 精細 精細管 (せいさいかん) seminiferous tubule 高精細度テレビ (こうせいさいどテレビ) high-definition television 精細胞 (せいさいぼう) spermatid And 3 more. Jinuma: Japanese Dictionary · Word lists