名詞 bacterium:

1. (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants
   同義詞：bacteria

1. A bacterium is identified as the cause for his duodenal ulcer.
   一種細菌被斷定為造成他十二指腸潰瘍的根源。
2. An organism, such as a bacterium, requiring oxygen to live.
   好氧菌需要氧氣生存的有機體，例如細菌
3. A protein substance produced in the blood or tissues in response to a specific antigen, such as a bacterium or a toxin. Antibodies destroy or weaken bacteria and neutralize organic poisons, thus forming the basis of immunity.
   抗體，免疫體血液或組織針對某種抗原如細菌或毒素而產(chǎn)生的蛋白質(zhì)物質(zhì)?？贵w消滅細菌或削弱其作用，中和有機毒素，因而形成免疫力
4. Movement of an organism, especially a bacterium, toward or away from air or oxygen.
   趨氧性有機體，特別是細菌移向或離開空氣或氧氣的運動

bac.te.ri.um

n.（名詞）
【復(fù)數(shù)】 bac.te.ri.a[-tôr.ô-…]
Any of the unicellular, prokaryotic microorganisms of the class Schizomycetes, which vary in terms of morphology, oxygen and nutritional requirements, and motility, and may be free-living, saprophytic, or pathogenic, the latter causing disease in plants or animals.
細菌：一種裂殖菌類的單細胞原核微生物，在結(jié)構(gòu)形態(tài)、氧氣、營養(yǎng)需求和運動方面都各有所不同，可以獨立生存，也可是腐生或病原性的，后者可引起植物或動物的疾病

來源：
New Latin
現(xiàn)代拉丁語
from Greek baktôrion [diminutive of] baktron [rod] * see bak-
源自 希臘語 baktôrion [] baktron的小后綴 [桿菌，桿狀體] *參見 bak-