oocyst
Noun
Meaning
(mycology, archaic) A reproductive cell in certain fungi. [from 19th c.]
(biology) A thick-walled spore in the lifecycle of some parasitic protozoans that develops into sporozoite. [from 20th c.]
Source: en.wiktionary.orgAnagrams
Examples
The sporozoites escape from the oocyst and migrate within the body of the vector to the salivary glands where they are injected into the new vertebrate host when the insect vector feeds again.
The fertilized macrogamete forms a zygote that in its turn forms an oocyst that is normally released from the body.
The male gametocyte produces a large number of gametes and the zygote gives rise to an oocyst, which is the infective stage.