(definition) by Webster 1913 Tue Dec 21 1999 at 21:37:59

Ac"ri*ta (#), n. pl. [NL., from Gr. indiscernible; priv. + to distinguish.] Zool.

The lowest groups of animals, in which no nervous system has been observed.

 

© Webster 1913.

I like it!

Log in or register to write something here or to contact authors.