noun partial or total absence of the skull.
2. acrania ·noun the lowest group of vertebrata, including the amphioxus, in which no skull exists.
ACRANIA
Meaning of ACRANIA in English
Webster English vocab. Английский словарь Webster. 2012
noun partial or total absence of the skull.
2. acrania ·noun the lowest group of vertebrata, including the amphioxus, in which no skull exists.
Webster English vocab. Английский словарь Webster. 2012