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单词 bacteroid
释义

bacteroidadj.n.

/ˈbaktərɔɪd/
Etymology: < bacterium n.: see -oid suffix; bacterioid would be a better form.
A. adj.
Of the nature of, or allied to, the bacteria.
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the world > life > biology > organism > micro-organism > bacterium > [adjective]
bacteroid1855
bacteric1873
bacterian1876
bacterial1879
bacterioid1889
1855 A. B. Garrod Essentials Materia Medica 143 A decided antiseptic, arresting the development of bacteroid organisms.
B. n.
A micro-organism of bacterial character; spec. one found (a) in the root-nodules of leguminous plants, (b) in the body of certain insects.
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the world > life > biology > organism > micro-organism > bacterium > [noun] > bacteroid
bacteroid1878
bacterioid1898
1878 F. de Chaumont Parkes's Pract. Hygiene (ed. 5) i. i. 63 Bacteria, vibriones, or microzymes... Frequently spoken of as Bacteroids.
1888 Philos. Trans. 1887 (Royal Soc.) B. 178 552 The gemmules or ‘bacteroids’ [in the Leguminosæ].
1898 R. T. Hewlett Man. Bacteriol. 26 If the roots of a pea, bean, or vetch be examined, numerous little nodules will be found upon them; on examining these microscopically small irregular bodies are found to be present, which have been termed bacteroids.
1940 Chambers's Techn. Dict. 70/1 Bacteroids, in Oligochaeta, rod-like bodies of unknown function occurring in the connective tissue.
1949 in H. W. Florey et al. Antibiotics II. viii. xxxi. 1024 Certain body cells of cockroaches contain gram positive micro-organisms known as bacteroids.
This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2020).
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adj.n.1855
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