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definitive host

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noun Zoology.
the host in or on which a parasite spends the sexual stage of its life cycle.

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Origin of definitive host

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use definitive host in a sentence

  • The mosquito is therefore the definitive host rather than the intermediate, as usually stated.

    Handbook of Medical Entomology|William Albert Riley
  • It is not likely that any intermediate host is necessary for the growth of the larv, prior to their access to the definitive host.

    Parasites|T. Spencer Cobbold

Scientific definitions for definitive host

definitive host
[ dĭ-fĭnĭ-tĭv ]

See under host.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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