Definitions for bacteriabækˈtɪər i ə; -ˈtɪər i əm
Random House Webster's College Dictionary
bac•te•ri•abækˈtɪər i ə; -ˈtɪər i əm(n.pl.)(sing.)-te•ri•um
any of numerous groups of microscopic one-celled organisms constituting the phylum Schizomycota, of the kingdom Monera, various species of which are involved in infectious diseases, nitrogen fixation, fermentation, or putrefaction.
Origin of bacteria:
1905–10; < NL < Gk baktḗria, pl. of baktḗrion; see bacterium
(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
Kernerman English Learner's Dictionary
bacteria(noun)ækˈtɪər i ə
tiny organisms, sometimes causing an infection
Plural form of bacterium.
U.S. National Library of Medicine
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
Translations for bacteria
Kernerman English Multilingual Dictionary
organisms not able to be seen except under a microscope, found in rotting matter, in air, in soil and in living bodies, some being the germs of disease
a throat infection caused by bacteria.
- bakterie, bakterieëAfrikaans
- بَكْتيريا، جَراثيمArabic
- bactériaPortuguese (BR)
- die BakterienGerman
- gerlar, bakteríurIcelandic
- bacteria anDutch
- بكټريا، ډېروا ړه (ميكروسكوبي) ژوى چه پر نوروعضوى او غير غضوى شيانو باندې ژوندكوى او ځينى نوعې يې ناروغى تو ليدوي او ځينې يې په موره (تخمر) كولو كې برخه لرېPashto
- 細菌Chinese (Trad.)
- vi khuẩnVietnamese
- 细菌Chinese (Simp.)
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