from The Century Dictionary.
- Pertaining to the Metazoa, or having their characters.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Zoöl.) Of or pertaining to the Metazoa.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective of, or relating to the
Sorry, no etymologies found.
The gut is the oldest of all the organs of the metazoic body, and it leads us back to the earliest age of the formation of organs -- to the first section of the Laurentian period.
This is clearly the oldest and original form of the metazoic embryo.
As the metazoic embryo in its earlier stages of development is not yet able to obtain its food and so build up the frame, the necessary material has to be stored up in the ovum.
Diagram of the four secondary germinal layers, transverse section through the metazoic embryo: Figure 1.74 of an annelid, Figure 1.75 of a vermalian. a primitive gut, dd ventral glandular layer, df ventral fibre-layer, hm skin-fibre-layer, hs skin-sense-layer, u beginning of the rudimentary kidneys, n beginning of the nerve-plates.)