| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024bac•te•ri•um /bækˈtɪriəm/USA pronunciation n. [countable]- Microbiologythe singular form of bacteria.
WordReference Random House Unabridged Dictionary of American English © 2024bac•te•ri•um (bak tēr′ē əm),USA pronunciation n. - Microbiologysing. of bacteria.
- Greek bakté̄rion, diminutive of baktēría staff; akin to báktron stick, Latin baculum, bacillum
- Neo-Latin
- 1840–50
Collins Concise English Dictionary © HarperCollins Publishers:: bacterium /bækˈtɪərɪəm/ n - the singular of bacteria
bac•te•ri•a /bækˈtɪriə/USA pronunciation n. [plural], sing. bac•te•ri•um /bækˈtɪriəm/.USA pronunciation - Microbiologya group of microscopic, one-celled organisms, some of which are involved in infectious diseases, fermentation, and decay.
bac•te•ri•al, adj. WordReference Random House Unabridged Dictionary of American English © 2024bac•te•ri•a (bak tēr′ē ə),USA pronunciation n.pl., sing. -te•ri•um (-tēr′ē əm).USA pronunciation - Microbiologyubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom Monera (in some classification systems the plant class Schizomycetes), various species of which are involved in fermentation, putrefaction, infectious diseases, or nitrogen fixation.
- Greek bakté̄ria, plural of bakté̄rion; see bacterium
- Neo-Latin
- 1905–10
Collins Concise English Dictionary © HarperCollins Publishers:: bacteria /bækˈtɪərɪə/ pl n ( sing -rium / -rɪəm/)- a very large group of microorganisms comprising one of the three domains of living organisms. They are prokaryotic, unicellular, and either free-living in soil or water or parasites of plants or animals
Etymology: 19th Century: plural of New Latin bacterium, from Greek baktērion, literally: a little stick, from baktron rod, staffbacˈterial adj bacˈterially adv |