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bacteria    音标拼音: [bækt'ɪriə]
n. 细菌

细菌

bacteria
n 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 to be plants [synonym: {bacteria}, {bacterium}]

Bacteria \Bac*te"ri*a\, n. pl.
See {Bacterium}.
[1913 Webster]


Bacterium \Bac*te"ri*um\ (b[a^]k*t[=e]"r[i^]*[u^]m), n.; pl.
{Bacteria} (b[a^]k*t[=e]"r[i^]*[.a]). [NL., fr. Gr.
bakth`rion, ba`ktron, a staff: cf. F. bact['e]rie.] (Biol.)
A microscopic single-celled organism having no
distinguishable nucleus, belonging to the kingdom Monera.
Bacteria have varying shapes, usually taking the form of a
jointed rodlike filament, or a small sphere, but also in
certain cases having a branched form. Bacteria are destitute
of chlorophyll, but in those members of the phylum Cyanophyta
(the blue-green algae) other light-absorbing pigments are
present. They are the smallest of microscopic organisms which
have their own metabolic processes carried on within cell
membranes, viruses being smaller but not capable of living
freely. The bacteria are very widely diffused in nature, and
multiply with marvelous rapidity, both by fission and by
spores. Bacteria may require oxygen for their
energy-producing metabolism, and these are called {aerobes};
or may multiply in the absence of oxygen, these forms being
{anaerobes}. Certain species are active agents in
fermentation, while others appear to be the cause of certain
infectious diseases. The branch of science with studies
bacteria is {bacteriology}, being a division of
{microbiology}. See {Bacillus}.
[1913 Webster PJC]

56 Moby Thesaurus words for "bacteria":
Euglena, adenovirus, aerobe, aerobic bacteria, amoeba, anaerobe,
anaerobic bacteria, animalcule, bacillus, bacterium, bug, coccus,
colon bacillus, diatom, disease-producing microorganism, dyad,
echovirus, enterovirus, filterable virus, flagellate, fungus, germ,
gram-negative bacteria, gram-positive bacteria, microbe,
microorganism, microspore, microzoa, mold, monad, nematode,
nonfilterable virus, paramecium, pathogen, picornavirus, protozoa,
protozoon, reovirus, rhinovirus, rickettsia, salmonella,
saprophyte, spirillum, spirochete, spore, sporozoon,
staphylococcus, streptococcus, tetrad, triad, trypanosome, vibrio,
virus, volvox, vorticellum, zoospore



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  • How do antibiotics work to kill bacteria? - Drugs. com
    Antibiotics work by interfering with the bacterial cell wall to prevent growth and replication of the bacteria Human cells do not have cell walls, but many types of bacteria do, and so antibiotics can target bacteria without harming human cells Antibiotics are either bactericidal (they kill the bacteria) or bacteriostatic (they keep the bacteria from reproducing and growing) Antibiotics
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  • Whats the difference between Bacteria and Viruses? - Drugs. com
    Bacteria are enclosed by a rigid cell wall, which can vary widely in its composition, helping to distinguish between different species of bacteria When exposed to a dye called a gram stain, gram positive bacteria trap the dye due to the structure of their walls, while gram negative bacteria release the dye readily, because their cell wall is thin
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  • What are the best antibiotics for a tooth infection? - Drugs. com
    There are several antibiotics that kill the common mouth bacteria that cause tooth infections The best (first-line) antibiotics for tooth infection include: amoxicillin penicillin cephalexin clindamycin azithromycin The best antibiotics for tooth infection are known to fight the bacteria most commonly found in your mouth
  • What are the best antibiotics for a boil? - Drugs. com
    The choice of antibiotic will also be based on which bacteria is most likely to be causing the infection Antibiotics prescribed for a boil typically target Staphylococcus aureus bacteria, since this is the most common bacteria that causes them
  • Bactrim Bactrim DS: Uses, Dosage, Side Effects - Drugs. com
    Bactrim (sulfamethoxazole and trimethoprim) is an antibiotic used to treat ear infections, urinary tract and other infections Includes Bactrim side effects, interactions and indications
  • Augmentin Patient Tips: 7 things you should know - Drugs. com
    Augmentin is a combination penicillin-type antibiotic that should be reserved for the treatment of infections caused by susceptible beta-lactamase-producing bacteria
  • List of Bacterial vaccines - Drugs. com
    Bacterial vaccines contain killed or attenuated bacteria that activate the immune system Antibodies are built against that particular bacteria, and prevents bacterial infection later An example of a bacterial vaccine is the Tuberculosis vaccine





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