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Fertility Glossary

Zygote

The single cell formed immediately after fertilisation.

Eggs, sperm & embryos

The zygote begins dividing within a day, becoming a cleavage-stage embryo. In Canadian law and clinic consent forms, stored zygotes and embryos are described together as in vitro embryos.

Also known as: fertilised egg

Related Canada guides

Sources

  • Canadian Fertility and Andrology Society (CFAS)

Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

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