bacterium

英 [b?k't??r??m] 美[b?k't?r??m]

IELTSGRE考研CET6常用詞匯

復(fù)數(shù):?bacteria;

bacterium: bacterium: [19] Bacterium was coined in the 1840s from Greek baktérion, a diminutive of báktron ‘stick’, on the basis that the originally discovered bacteria were rod-shaped. At first it was sometimes anglicized to bactery, but the Latin form has prevailed. Related, but a later introduction, is bacillus [19]: this is a diminutive of Latin baculum ‘stick’, and the term was again inspired by the microorganism’s shape. Latin baculum is also responsible, via Italian bacchio and its diminutive form bacchetta, for the long French loaf, the baguette.
=> bacillus, baguette, débacle, imbecile
bacterium (n.): c. 1848, singular of bacteria (q.v.).

1. They found a bacterium visible to the human eye.: 他們發(fā)現(xiàn)了一種肉眼可見(jiàn)的細(xì)菌。

2. Treatment is supplemented with a course of antibiotics to kill the bacterium.: 治療期間輔以一個(gè)療程的抗生素注射來(lái)殺滅細(xì)菌。

3. They have isolated the bacterium in its pure form.: 他們已經(jīng)把細(xì)菌分離出來(lái),使它們處于較純的狀態(tài).

4. A bacterium is identified as the cause for his duodenal ulcer.: 一種細(xì)菌被斷定為造成他十二指腸潰瘍的根源.

5. Classification of the Haemophilus - like bacterium has been only tentatively determined.: 在分類上把這種細(xì)菌只是暫時(shí)性地作為類嗜血桿菌.