bacterium

名词 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
   同义词：bacteria

1. A bacterium is identified as the cause for his duodenal ulcer.
   一种细菌被断定为造成他十二指肠溃疡的根源。
2. An organism, such as a bacterium, requiring oxygen to live.
   好氧菌需要氧气生存的有机体，例如细菌
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.
   抗体，免疫体血液或组织针对某种抗原如细菌或毒素而产生的蛋白质物质。抗体消灭细菌或削弱其作用，中和有机毒素，因而形成免疫力
4. Movement of an organism, especially a bacterium, toward or away from air or oxygen.
   趋氧性有机体，特别是细菌移向或离开空气或氧气的运动

bac.te.ri.um

n.（名词）
【复数】 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.
细菌：一种裂殖菌类的单细胞原核微生物，在结构形态、氧气、营养需求和运动方面都各有所不同，可以独立生存，也可是腐生或病原性的，后者可引起植物或动物的疾病

来源：
New Latin
现代拉丁语
from Greek baktôrion [diminutive of] baktron [rod] * see bak-
源自 希腊语 baktôrion [] baktron的小后缀 [杆菌，杆状体] *参见 bak-