proamnion
/prəʊˈamnɪən/Embryology
noun
In many vertebrate embryos: an area of blastoderm, located at the cephalic end, in which there is no mesoderm separating the ectoderm and endoderm.
Origin
Late 19th century; earliest use found in American Naturalist. From pro- + amnion, after French proamnios.
- Protestantizer
- Protestant work ethic
- protestation
- protestator
- protestatory
- protest button
- protester
- protest flag
- protestingly
- protest-march
- protest marcher
- protestor
- protest-oriented
- protest vote
- protest voting
- proteus
- Proteus syndrome
- Protevangelion
- Protevangelium
- protext
- prothalamium
- prothallial
- prothallial cell
- prothallic
- prothallium