: having a well-developed head —used of the larvae of certain flies — compare hemicephalous.

What is Eukoryota?

: any of a domain (Eukarya) or a higher taxonomic group (Eukaryota) above the kingdom that includes organisms composed of one or more cells containing visibly evident nuclei and organelles — compare archaea, bacterium, prokaryote.

What does byous mean?

adverb. \ " \ Definition of byous (Entry 2 of 2) Scottish. : extremely, markedly.