oocyst

oocyst definition - medical

o·o·cyst (ōˈə-sĭstˌ)

noun
A thick-walled structure in which sporozoan zygotes develop and that serves to transfer them to new hosts.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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