exflagellation

noun

ex·​flag·​el·​la·​tion (ˌ)eks-ˌflaj-ə-ˈlā-shən 

1

: the casting off of cilia or flagella

2

: the formation of microgametes in sporozoans (as the malaria parasite) by extrusion of nuclear material into peripheral processes resembling flagella

exflagellate

-ˈflaj-ə-ˌlāt 

intransitive verb

exflagellated; exflagellating