Definition, Meaning & Synonyms

definitive host

Noun

/dɪˈfɪnɪtɪv hɒst/

Definition

A definitive host is an organism in which a parasite reaches maturity and, if applicable, reproduces sexually.

Examples

The definitive host of the malaria parasite is the Anopheles mosquito.
In its definitive host, the tapeworm can grow to its full length.
Understanding the life cycle of the parasite helps identify its definitive host.

Meaning

In the context of parasitology, a definitive host supports the full life cycle of a parasite, offering all the necessary conditions for growth and reproduction.