embryonic disc
(US embryonic disk) Embryology
noun
The blastoderm of a very early embryo.
Origin
Late 19th century.
- Asmera
- (as) merry (or lively) as a grig
- as much
- (as) much as
- Asn
- as near as
- as near as dammit (or damn it)
- as near as damn it
- (as) nice (or sweet) as pie
- a snowball's chance (in hell)
- (as) nutty as a fruitcake
- asocial
- (as) of right (or by right)
- as often as not
- Asoka
- Asoka Chakra
- Asoka pillar
- as old as the hills
- as one door closes, another opens
- as one man
- a song and dance
- as opposed to
- as (or so) far as it goes
- as (or so) far as —— is concerned
- as (or so) long as