バクテリアalso: ばくてりやばくてりあCommon word›Freq.FrequencyTop 50,000Meanings1nounbacteria; germsLoanword from English 'bacteria'. Used in scientific and everyday contexts. Often interchangeable with 細菌 (さいきん), but バクテリア can sound more technical or Western.See also: 細菌この薬くすりはバクテリアの増ぞう殖しょくを