| 释义 |
intermediate host
intermediate hostn. An organism in or on which a parasite develops to an adult but not sexually mature stage.intermediate host n (Zoology) an animal that acts as host to a parasite that has not yet become sexually mature in′terme′diate host′
n. the host in which a parasite undergoes development but does not reach sexual maturity. [1875–80] Thesaurus| Noun | 1. | intermediate host - a host that is used by a parasite in the course of its life cyclehost - an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association |
Intermediate Host
intermediate host[‚in·tər′mēd·ē·ət ′hōst] (biology) The host in which a parasite multiplies asexually. Intermediate Host (in biology). (1) An animal in which sexually immature parasites live. Those animals in which parasites reach sexual maturity and reproduce are called definitive hosts. Man, for instance, is the intermediate host of the causative agent of malaria (malarial plasmodium), while the mosquito is the definitive host. (2) A plant on which a rust fungus, or a parasite of a cultivated plant, passes part of its life cycle. Most of these fungi form aecidial sporangiophores, or aecidia, on intermediate hosts; for example, stem rust of the grasses Puccinia graminis forms on barberry leaves. intermediate host
host [hōst] 1. an animal or plant that harbors and provides sustenance for another organism (the parasite).2. the recipient of an organ or other tissue derived from another organism (the donor).accidental host one that accidentally harbors an organism that is not ordinarily parasitic in the particular species.definitive host (final host) a host in which a parasite attains sexual maturity.intermediate host a host in which a parasite passes one or more of its asexual stages; usually designated first and second, if there is more than one.paratenic host a potential or substitute intermediate host that serves until the appropriate definitive host is reached, and in which no development of the parasite occurs; it may or may not be necessary to the completion of the parasite's life cycle.host of predilection the host preferred by a parasite.primary host definitive host.reservoir host an animal (or species) that is infected by a parasite, and which serves as a source of infection for humans or another species.secondary host intermediate host.transfer host one that is used until the appropriate definitive host is reached, but is not necessary to completion of the life cycle of the parasite.in·ter·me·di·ate host , intermediary host1. one in which larval or developmental stages occur; 2. a host through which a microorganism can pass or which contains an asexual stage of a parasite. Synonym(s): secondary hostintermediate hostn. An organism in or on which a parasite develops to an adult but not sexually mature stage.in·ter·me·di·ate host , intermediary host (in'tĕr-mē'dē-ăt hōst, in'tĕr-mē'dē-ar-ē) 1. One in which larval or developmental stages occur. 2. A host through which a microorganism can pass or contains an asexual stage of a parasite. intermediate host any host upon which a parasite spends that part of its life cycle in which it is not sexually active.AcronymsSeeIHintermediate host
Related to intermediate host: paratenic hostWords related to intermediate hostnoun a host that is used by a parasite in the course of its life cycleRelated Words |