monoxenous
/mɒnɒksɪˈnuːs/Definitions
1. adjective
Having a single host species, especially in reference to parasites that depend on only one type of host.
“The monoxenous parasite relies heavily on a specific species of tree for its survival.”
2. noun
A parasite that requires only one host species for its life cycle.
“The scientist studied the behavior of monoxenous organisms in the local ecosystem.”