The cell resulting from the union of an ovum and a spermatozoon (including the organism that develops from that cell)

Usage examples of zygote.

And of the one in millions that meets a partner and forms a zygote, fewer still reach maturity.

Hypothesis: implantation of a zygote at the uterine wall immunizes a woman against future conceptions, not only by the same father, but against any sperm of the same blood type.

When a zygote or an embryo or any of any age died, their wathans were attracted to the buried machine and caged.

A few minutes ago, that microscopic knot of organic tissue, from which she had so recently been separated, had been only a donation, only a zygote or protochild.

A trillion pages, the complete journey from Aardvark to Zygote and back, enpacked, retrievable, in a flick of a nick on a stick.

Just the thought that a single zygote, in less time than it takes the average Civil Service gang to dig a bed for a mile of interstate, differentiates into vertebrae, liver, dimpled knees, and ears complete with recording membrane is enough to knock Ressler flat on the metaphorical mat.

Below all that, on the deepest level of all, is the zygote bank, ten thousand fertilized ova tucked away snugly in permafreeze spansules, and enough additional sperm and unfertilized ova to maintain significant genetic diversity as the succeeding generations of the colony unfold.

With them they carried the krydda-preserved zygotes of narwhals, dolphins, sperm whales and other extinct sea mammals.

When they discovered a world of fecund oceans and sweet, untainted air, they quickened the zygotes and nursed the baby whales through their childhood terrors of sharks and other predators.

On Qallar, each year a million identical zygotes are quickened and a million identical, perfect babies are brought into the light of day.

Genetic technicians can correct every identifiable malady in the zygotes, and children are born healthy for life.

Terza reached around and carefully returned that culture dish to incubation, then drew the next tiny zygote from its sloshy growing place.

The viral vector has a very broad-spectrum transferase used principally by terraformers tinkering with the zygotes of exotic animals.

Genemod was a complicated process, and once the zygote had become blastomeres, no further permanent engineering was possible.

The first act of germination is to load a human zygote into the egg, which includes a womb analogue and hematopoiesis organs.