World English Dictionary
protozoology (ˌprəʊtəʊzəʊˈɒlədʒɪ)
the branch of biology concerned with the study of protozoans

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

protozoology pro·to·zo·ol·o·gy (prō'tə-zō-ŏl'ə-jē)
The biological study of protozoa.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
protozoology   (prō'tə-zō-ŏl'ə-jē)  Pronunciation Key 
The scientific study of protozoans.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


the study of protozoans. The science had its beginnings in the latter half of the 17th century when Antonie van Leeuwenhoek of the Netherlands first observed protozoans by means of his invention, the microscope.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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