náng​pēi

blastocyst

囊胚 náng​pēi
blastocyst
The specific stage of mammalian embryonic development that precedes implantation, characterized by the formation of an inner cell mass.
blastula
An early stage of embryonic development in animals, typically consisting of a hollow sphere of cells.

Frequency

Movie subtitles
0.030 per million appears in 0% of films
Written text
0.217 per million

Sources

Definitions
CC-CEDICT