The type of isomerism in which chemical compounds have identical proportions of the same elements and the same molecular weight, but have radicals differing in type or position, with resulting differences in chemical properties.
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(biology) The segmentation of the body into similar discrete units.
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The condition of having the body divided into metameres, apparent in certain animals only in the early embryonic stages of development.
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The condition of being made up of metameres.
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The condition of having the body divided into metameres, apparent in certain animals only in the early embryonic stages of development.
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(1) In colorimetry, the quality of some colors that causes them to appear different under various light sources. For example, two color samples might appear the same in natural light, but not in artificial light.
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(colorimetry) The matching of apparent color of objects with different spectral power distributions.
Whilst the new paint was a good metameric match under natural light, it looked odd under a fluorescent light.
The development of the Cephalopoda affords at present no better evidence that the metamerism is secondary.
The setae are implanted metamerically in accordance with the metamerism of the body, which consists of a prostomium followed by a number of segments.
The internal organs are largely repeated metamerically, in correspondence with the external metamerism.
The Chaetopoda are characterized by a spacious coelom, which is divided into a series of chambers in accordance with the general metamerism of the body.
In the Oligochaeta there is a closer correspondence between external metamerism and the divisions of the coelom than is apparent in some Chaetopods.