[zen-uh-dahy-uhg-noh-sis, zee-nuh-]
noun Medicine/Medical.
a method of diagnosing certain diseases caused by insects, ticks, or other vectors, by allowing uninfected vectors to feed on the patient and later examining them for infections.

1925–30; xeno- + diagnosis

xenodiagnostic [zen-uh-dahy-uhg-nos-tik, zee-nuh-] , adjective
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Medical Dictionary

xenodiagnosis xen·o·di·ag·no·sis (zěn'ə-dī'əg-nō'sĭs, zē'nə-)
n. pl. xen·o·di·ag·no·ses (-sēz)
Diagnosis of an infectious disease at an early stage by exposing a presumably infected individual or tissue to a clean, laboratory-bred mosquito, tick, or other vector and, following a suitable incubation period, examining the vector for the presence of the infective microorganism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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