pre-embryo

British  

/ priːˈɛmbrɪəʊ /

noun

1. the structure formed after fertilization of an ovum but before differentiation of embryonic tissue

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Example Sentences

Other scientists have already used human stem cells to create a “blastoid, ” a structure mimicking a pre-embryo, that can serve as a research alternative to a real one.

From Seattle Times

Scientists are using human stem cells to create a structure that mimics a pre-embryo and can serve as a research alternative to a real one.

From Seattle Times

According to European Union regulations, a pre-embryo is considered tissue: it must be handled, stored, and transported according to a 2004 directive that also addresses bone marrow for transplants and skin for grafts.

From The New Yorker

Conception, artificial or otherwise, is so uncertain that each pre-embryo, once it’s implanted, has only a one-in-three chance of growing into a human being.

From The New Yorker

We chose the name Felix because it means “lucky”: lucky to have been our sole pre-embryo to make it to the blastocyst stage in vitro; lucky to have survived freezing to -196C and thawing without being damaged by intracellular ice crystals; lucky to have implanted successfully and grown healthily in the womb.

From The Guardian