from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Variant of dorsiventral.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of, pertaining to, or situated at the back and belly of something
from the GNU version of the Collaborative International Dictionary of English
- adj. From the dorsal to the ventral side of an animal.
from The Century Dictionary and Cyclopedia
- Same as dorsabdominal.
- Same as bifacial.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. extending from the back to the belly
This secondary axis is commonly designated as 'dorsoventral'
The most striking characteristic of isopods is their dorsoventral compression.
Predictions: proficient terrestrial abilities; no need for highly developed soaring or gliding skills; bill elongate but lacking specializations (such as lateral or dorsoventral compression, keels, or hooked bill tips); neck flexibility not required as the neck only needs to bring the bill tips close to the ground; head-neck joint, at least, should be flexible.
I continued the work on dorsal, discovered the recessive phenotype and interpreted the phenotype postulating a gradient determining the dorsoventral axis.
The pattern also displays a clear dorsoventral difference, although the ventralmost (mesoderm) and dorsalmost (amnioserosa) structures of the embryonic fate map are not represented in the epidermal pattern.
A large fraction of the genes identified in both the zygotic and the maternal screens affect either the anteroposterior or the dorsoventral axis.
The maternal control of the dorsoventral pattern is achieved by only one group of genes that establish a nuclear localization gradient, with its maximum at the ventral side, of a transcription factor that functions both as a repressor of dorsally expressed genes and an activator of ventrally expressed genes (17), (19).
Other mutations affect the dorsoventral subdivision of the somites by the horizontal myoseptum.
The subsequent phenotypic analysis and molecular cloning of many of these genes, and investigation into the interactions of their products, resulted in a rather complete general picture of the mechanisms establishing the anteroposterior and the dorsoventral axis of the early embryo
The refinement of the dorsoventral pattern on the dorsal side involves a long range signalling process, unlike the series of prepatterns of transcription factors observed along the anteroposterior axis (40).