You know what it looks like… but what is it called?
TAKE THE QUIZhead fold
noun
: an anterior thickening of the blastoderm immediately anterior to the neural plate of an amniotic embryo from which the anterior part of the body develops
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Merriam-Webster unabridged
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- Often used to describe “the march of time,” what does inexorable mean?


Can you make 12 words with 7 letters?
PLAY
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