segmentation cavity

noun

, Embryology.

segmentation cavity

First recorded in 1885–90

This membrane rests with its extreme edge on the white yolk, its central portion covering in the segmentation cavity.

At this time also the greatest number of formative cells are to be found at the bottom of the now large segmentation cavity.

The next important change which occurs is the formation of the so-called segmentation cavity.

When the segmentation cavity is first formed, no great changes have taken place in the cells forming the blastoderm.

The diminution in size of the segmentation cavity, both relatively and absolutely.

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