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blastopore
blas·to·pore [ blástə pàwr ] (plural blas·to·pores)


noun 
Definition:
 
embryonic opening: an opening in a young embryo that develops into the anus in some mammals

blas·to·por·al [ blàstə páwrəl ] adjective
blas·to·por·ic adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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