DISC

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Related to embryonic disc: embryonic disk, germ disc
References in periodicals archive ?
4 mM of the pesticide altered formation of the embryonic disc at the blastula stage, resulting in abnormal gastrulation and arrest of further development.
Some authors believe conjoined twinning result from late and incomplete division of the embryonic disc at day 13 to 15 after conception.
The twins are monozygotic and do not complete division of the embryonic disc at gestational days 13-15.