gemmation
Concise Oxford English Dictionary © 2008 Oxford University Press:
gemmation /dʒɛˈmeɪʃ(ə)n/
▶noun Biology asexual reproduction by the production of gemmae; budding.
– origin C18: from Fr., from gemmer ‘to bud’, from gemme ‘bud’, from L. gemma.
'gemmation' also found in these Oxford entries:

