Definition of -blast in English:

-blast

combining form

Biology
1Denoting an embryonic cell: erythroblast Compare with -cyte.
1.1Denoting a germ layer of an embryo: epiblast

Origin

from Greek blastos 'germ, sprout'.

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Word of the day wiseacre
Pronunciation: ˈwīzˌākər
noun
a know-it-all…