virus 的定义
plural vi·rus·es.
- an ultramicroscopic, metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.
- a viral disease: He stayed home sick with a virus for nearly two weeks.
- a corrupting influence on morals or the intellect; poison.
- a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network.
virus 近义词
bacterium, bug
更多virus例句
- By September 10, there was a 44 percent increase in the proportion of people over age 75 who have been diagnosed with the virus compared to the previous week.
- These viruses circulate year-round in the tropics but are more common during the rainy season.
- That is when Eckard Wimmer, a virologist at Stony Brook University, caused a sensation by creating infectious polio virus starting from only genetic instructions.
- “Once a cell is infected, it is completely taken over by the virus, producing an astonishing number of viruses,” Ehre says.
- By April, waves of workers who debone chickens or carve up pork elbow-to-elbow with their co-workers were falling ill from the virus.
- The vaccine is delivered through a “carrier virus” that causes a common cold in chimpanzees but does not affect humans.
- He became delirious, his heartbeat grew ragged, his blood teemed with the virus, and his lungs, liver and kidneys began to fail.
- By May 27, five people had succumbed to the virus and 16 more were infected.
- The current FDA-approved measles vaccine consists of live but weakened measles virus that is injected into the arm.
- The fact that the virus is still alive has sustained many safety concerns, both rational and irrational, about its use.
- If there is neuritis from the virus it becomes intense and causes muscular contractions, paresis, and paralysis.
- (p. 442) But it was the more poisonous virus of Secession which finally laid their proud city low.
- The scientists of Sator knew that the virus was virulent; in fact, too virulent for its own good.
- They knew that shortly after every Nansalian died, the virus, too, would be dead.
- It killed the host every time, and the virus could not live outside a living cell.