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bleary-eyed
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blastula
blas·tu·la [ bláschələ ] (plural blas·tu·las or blas·tu·lae [ bláschə l ])


noun 
Definition:
 
embryonic form: an embryo at an early stage of development, consisting of a hollow ball of cells
[Late 19th century. < modern Latin< Greek blastos "bud, germ, sprout"]

blas·tu·lar adjective
blas·tu·la·tion [ blàschə láysh'n ] noun
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