zygote
(ˈzaɪɡəʊt
, ˈzɪɡ-) noun 1 the cell resulting from the union of an ovum and a spermatozoon
2 the organism that develops from such a cell
[C19: from Greek zugōtos yoked, from zugoun to yoke]
> zygotic (zaɪˈɡɒtɪk, zɪ-) adjective
> zyˈgotically adverb