xeno-, xen-, -xenic, -xenism, -xenist, -xenous, -xeny

A reference to a parasite that is not host specific: A pleioxenous parasite has several hosts during its life cycle.

A condition where a parasite can descend upon several species of host plants: In the TV documentary, pleioxeny was illustrated by showing how parasites invaded various species of plants as their hosts.

Polyxeny is the situation of a parasite associated with many hosts during its life-cycle.

Polyxeny can also be described as the circumstance of a parasite that is not host specific.

The office or function of a "proxenus": The system of proxeni pertained to the hospitality between cities in ancient Greece.

A "proxenus" was a resident citizen of a Greek state who was appointed by another state to represent and protect its interests.

A signal designed for military use: A pyrotechnic signal produces a colored light or smoke for the purpose of transmitting information.

An organism that normally exists in still water, but is accidentally present in running water: Rheoxenes can be plants or animals that are unable to thrive or propagate in running water or in waves of the ocean.

Concerning organisms that occur only occasionally in running water: Such rheoxenous forms of life are not adapted to life in running water, but have often been washed into the moving water from surrounding areas.

Pertaining to a tolerance of only a narrow range of host species: Stenoxenous parasites are those that are limited or restricted to one or only a few host species.

An aquatic organism that appears occasionally or accidentally in underground water or in cavernous systems: Stygoxenes are not adapted to live in the dark, like having a lack of pigmentation and a degeneration of the eyes.

In biology, descriptive of an organism that does not live permanently in underground water: Such stygoxenous creatures are found only occasionally in caves or subterranean passages.

Referring to a mixture of two or more organisms cultivated under controlled conditions: Under synxenic circumstances, axenic organisms were cultured on a diet that was artificial and free of bacteria.

The situation of a mixture of various organisms cultivated under a controlled condition: In his biology book, Jack finally found the term synxeny that described the case of at least two organisms that were to grow on bacteria-free and artificial food or sustenance.

An enzyme that is found in herbicides: Toxenzymes are mentioned in new goals for use in herbicides and gene-modified plants

A reference to a parasite utilizing three host species during its life cycle: A trixenous parasite uses a mixed culture of organisms, where one organism is associated with three other species.

The feature of a parasite that uses three hosts species to complete its life cycle: In trixeny, the three hosts are normally a snail, followed by a fish or other non vertebrate organism, and then the final host is a bird or other vertebrate or mammal.

1. A living being found only occasionally in underground passages: Sam, the park naturalist, was charting the number of different trogloxenes who live from time to time in the caves, including hikers who get lost and sleep in them overnight.
2. A cavern guest; an animal that spends occasionally short periods in dark recesses: Hibernating bears are a common form of trogloxene, spending part of the winter season in large holes, or dens, in mountains or underground.