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.
- honor trick
- honour
- honourability
- honourable
- honourable discharge
- honourable mention
- honourableness
- honourableship
- honourably
- honour board
- honour-bound
- honour bright
- honour card
- honour code
- honour court
- Honoured Society
- honouree
- honourer
- honour guard
- honour killing
- honourless
- honour list
- honour man
- honour moderations
- whole step