Linked from
The 8 pages that link to Definitive host, each with the reason it gives.
HostBroader topic: Some parasites use several hosts, but sexual reproduction occurs in this one.
Taenia soliumNarrower topic: Humans are the definitive host for adult T. solium.
CestodaRelated: Adult cestodes commonly reproduce in the digestive tract of their definitive host.
ParasitologyBroader topic: Identifying the definitive host clarifies where a parasite reproduces.
HelminthologyRelated: Identifying definitive hosts clarifies where adult helminths reproduce.