Host

Pronunciation
/hohst/
Category
Ecology
Singular
Host
Plural
Hosts

Definition

An organism that provides sustenance or shelter for a parasite or another organism, often to its own detriment.

Etymology

From Middle English 'host' via Old French 'hoste', from Latin 'hospes', meaning 'guest' or 'host'.

Example

The aphid is a common host for the parasitic wasp Lysiphlebus testaceipes.

Synonyms

Related Terms

Usage Notes

Hosts can range from plants and insects to mammals, and their interaction with parasites can have significant ecological impacts.