head fold
Embryology
noun
A fold under the cephalic end of the blastoderm in an early amniote embryo, from which the anterior part of the body develops.
Origin
Late 19th century; earliest use found in Quarterly Journal of Microscopical Science.
- in spite of oneself
- in sport
- inst.
- instability
- instal
- install
- installation
- installer
- installment
- installment plan
- instalment
- instalment credit
- instance
- instance court
- instancy
- instant
- instantaneity
- instantaneous
- instantaneously
- instantaneousness
- instant camera
- instanter
- instantiate
- instantiation
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