amplifying host

noun
variants: or less commonly amplifier host or amplification host
plural amplifying hosts also amplifier hosts or amplification hosts

Definition of amplifying host

: an organism in which an infectious agent (such as a virus or bacterium) that is pathogenic for some other species is able to replicate rapidly and to high concentrations

Note: An amplifying host tends to increase the spread of infectious pathogens and may be intermediate to or also serve as the pathogen reservoir (see reservoir sense 3a)

These data suggest chipmunks might play a role in enzootic WNV [West Nile Virus] cycles and be an amplifying host for mosquitoes that could infect humans.— Kenneth B. Platt et al. Pigs are particularly important, as they act as amplifier hosts, pumping out millions of virus particles.— Linda Searle

First Known Use of amplifying host

1963, in the meaning defined above

Learn More About amplifying host

Time Traveler for amplifying host

Time Traveler

The first known use of amplifying host was in 1963

See more words from the same year

Dictionary Entries Near amplifying host

amplify

amplifying host

amplistat

See More Nearby Entries 

Statistics for amplifying host

Cite this Entry

“Amplifying host.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amplifying%20host. Accessed 28 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!