System Glossary
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Definition of Term

(English) Movement of the embryonic cell mass over the surface of the yolk ; the germ ring marks the boundary of the advancing sheet of cells. (See also: embryo, yolk, LarvalBase)
(French) Mouvement de la masse de cellules embryonnaires sur la surface vitelline ; l'anneau germinal marque la limite de progression de la couche des cellules. (See also: embryo, yolk, LarvalBase)

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