This result shows that from the beginning of development the material for the trunk region is mainly localized in the posterior cell; and, furthermore, that this material is essential for the development of the metameric structure.
Also, one of a series of metameric compounds of which coridine is a type.
Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit.
Any one of three metameric radicals which are characteristic respectively of the three xylenes.
Pertaining to, or designating, either one of two distinct acids which are derived from xylic acid and related compounds, and are metameric with uvitic acid.
A hydrocarbon of the aromatic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid.
A liquidmetameric with xylenol, belonging to the class of phenols, and obtained by distilling certain salts of phloretic acid.
It is consciously and admittedly an attempt to apply Geoffroy's principle of the unity of plan and composition to the three great metameric groups, the Annelida, Arthropoda, and Vertebrata.
As part of the wider idea of the metameric repetition of parts it had some scientific worth, but the theory was pushed too far, and the facts were twisted to suit it.
In other respects Sedgwick's speculations link on more closely to the Gastræa theory, for one of his main contentions is that the blastopore or Urmund is homologous throughout at least the three metameric phyla.
It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin.
Defn: The symmetry of a metameric structure; serial symmetry; the state of being made up of metameres.
Defn: Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit.
Active valeric acid, a metameric variety which turns the plane of polarization to the right, although formed by the oxidation of a levorotatory amyl alcohol.
Defn: Either of two metameric nitrogenous hydrocarbon bases, C12H8N2, analogous to phenanthridine, but more highly nitrogenized.
Defn: Pertaining to, or designating, an organic acid metameric with malic acid.
Defn: Pertaining to, or designating, either one of two distinct acids which are derived from xylic acid and related compounds, and are metameric with uvitic acid.
Defn: Pertaining to, or designating, an acid of the ethylene series, metameric with fumaric acid and obtained by heating malic acid.
Defn: A liquid metameric with xylenol, belonging to the class of phenols, and obtained by distilling certain salts of phloretic acid.
Defn: Any one of sixmetameric hydrocarbons, (CH3)2.
Defn: A nitrogenous base homologous with pyridine, obtained from coal tar as an oily liquid, C11H17N; also, any one of the group od metameric compounds of which rubidine is the type.
Defn: A hydrocarbon of the aromatic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid.
Physics), terms used of certainmetameric substances which, while identical with each other in other respects, differ in this, viz.
Defn: An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.
It is important to notice that the metamericplan of growth of Chaetopods is still preserved.
The facts of the development of the skeleton cannot be said to support the fold view; according to it we should expect to find a series of metameric supporting rays produced which later on become fused at their bases.
Pertaining to, or designating, an acid of the ethylene series, metameric with fumaric acid and obtained by heating malic acid.
A metameric segment of the cerebro-spinal nervous system.
The state or quality of being metameric; also, the relation or condition of metameric compounds.
The existence of metameric compounds is due to the different arrangement of the same constituents in the molecule.
The symmetry of a metameric structure; serial symmetry; the state of being made up of metameres.
With the segmentation of the trunk the latter structure itself may have acquired the more or less definite metameric arrangement of its parts.
These funnels, which have a metameric arrangement, constitute the pronephros, the whole of which is situated in the pericardial region of the body cavity.
It is possible to have bilateral symmetry without a metameric arrangement of parts, as in the mussel and the cuttle-fish; but metameric segmentation without complete or reduced bilateral symmetry does not occur.
What are bilateral symmetry andmetameric segmentation?
But as certainly as we have no such metameric segmentation, as this older view implies, in the brain-case of the frog, so quite as certainly is metameric segmentation evident in its branchial arches.
In contrast to metameric segmentation is the antimeric repetition of radial symmetry (Section 142), in which each ray of the star is called an antimere.
The renal organ of the rabbit, some time before birth, displays a metameric arrangement of its parts; but this disappears, as development proceeds, into the compact kidney of the adult.
But the metameric segmentation in the rabbit's organism is not nearly so marked as that of an earthworm, for instance, which is visibly a chain of rings.
If the student wants a perfect figure of metameric segmentation he should think of a train of precisely similar carriages, or a string of beads.
Gegenbaur's evertebral part--the region of the olfactory and optic nerves--which cannot be referred to any metameric segmentation.
In the true Chitonidae there are generally two apertures on each side, and in two species three or four, another instance of the tendency to metameric repetition in the group.
In Cartilaginous ganoids the only indications of metameric segmentation are found in the neural and haemal arches.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "metameric" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: acid; basic; biochemical; chemical; elemental; elementary
