Bacteriology is the scientific study of bacteria — the tiny living things, too small to see with the eye, that live almost everywhere. This branch of science asks how bacteria grow, how they change, which ones cause disease, and how we can use them or stop them. It sits next to other “tiny life” sciences: virology is about viruses.

Bacteriology is the scientific study of bacteriabacteriology是研究細菌的科學 — the tiny living things, too small to see with the eye, that live almost everywhere細菌是小到肉眼看不到、但幾乎無所不在的微小生物。This branch of science asks how bacteria grow, how they change, which ones cause disease, and how we can use them or stop them這個科學分支研究細菌怎麼生長、怎麼變化、哪些會致病，以及我們該怎麼利用或阻止它們。It sits next to other "tiny life" sciences它跟其他研究「微小生命」的科學並列: virology is about virusesvirology研究的是病毒。

Students meet the word in biology class and in medicine. It is a formal, school-and-lab noun. Though actually, a lot of this work now lives under the bigger name “microbiology,” which covers bacteria and other microscopic life together; bacteriology is the more focused piece.

Students meet the word in biology class and in medicine學生在生物課和醫學裡會遇到這個字。It is a formal, school-and-lab noun這是一個正式、屬於學校和實驗室用語的名詞。Though actually不過其實, a lot of this work now lives under the bigger name "microbiology,"這方面的研究現在有很多都歸在更大的名稱「microbiology（微生物學）」底下, which covers bacteria and other microscopic life together這個名稱把細菌和其他微生物都包含在一起; bacteriology is the more focused piecebacteriology則是比較聚焦的那一塊。