細菌 さいきん bacterium N1 #6,471 Meanings noun bacterium; bacteria; germ Its kanji 細 サイ · ほそ.い、ほそ.る、こま.か、こま.かい dainty, get thin, taper, slender, narrow, detailed, precise 菌 キン germ, fungus, bacteria In sentences Furigana それは細菌さいきん感染かんせんに有効ゆうこうだ。 It is effective against bacterial infections. #205187