acraniate
/(ˌ)eɪˈkreɪnɪət/Zoology
adjective
Lacking a skull or cranium; (formerly) specifically belonging to the subphylum Cephalochordata (formerly Acrania) of primitive vertebrates lacking braincases.
noun
An acraniate organism; especially a cephalochordate.
Origin
Late 19th century; earliest use found in Canadian Journal. Either from a- + craniate, or from scientific Latin Acrania + -ate.
- in the catbird seat
- in the cause of
- in the clear
- in the clouds
- in the club (or the pudding club)
- in the clutch
- in the cold light of day
- in the concrete
- in (the) course of ——
- in the dark
- in the dogbox
- in the driver's seat
- in the driving (or driver's) seat
- in the end
- in the event
- in the event of ——
- in the event that
- in the extreme
- in the family way
- in the field
- in the final (or last) analysis
- in the first (or second etc.) instance
- in the first place
- in the flesh
- in the fullness of time