metamer


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Related to metamer: metamere, metameric segmentation

metamer

[′med·ə·mər]
(organic chemistry)
One of two or more chemical compounds that exhibits isomerism with the others.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

metamer

A light, 2 of the same color as another light, but of different spectral power distribution.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
A bud [b.sup.k,[beta].sub.n,[phi]] is symbolized by [s.sup.k,[beta].sub.[phi]] and a metamer of PA j by [m.sub.j].
A metamer of PA 1 can bear a maximum of two lateral buds of PA 2 (i.e.
In Abutilon, neighbor identity had no effect on above-ground biomass, number of main axis nodes, maximum internode length, petiole length, area per leaf, and metamer mass, or specific masses of stems, petioles, or leaves (0.0786 [less than or equal to] P [less than or equal to] 0.3531 from ANOVA; Table 1).
Petiole leaf inclination angles of both Abutilon and Polygonum followed a regular pattern with metamer age, and were generally unaffected by neighbor identity.
Thus, plants do not merely increase in size (biomass, height, volume) during ontogeny by adding metamers, but these metamers almost universally show a certain degree of variation, in part simply because an increase in size necessitates correlated changes in shape and geometry (Niklas, 1994).
So, for instance, generative cells constitute the meristem, which produces metamers, which together make up modules.
Metamers, in their various modifications, are organized into repeating units, and these determine the aspect and organization of the shoot system.
One of the downsides of the choice method of evaluating colorimetric metamers is that in addition to different brightness, stimuli also appear different in color.
These stimuli were colorimetric metamers, but they were not visual metamers to real human observers.
If, under the same illuminant, samples with different spectral reflectance functions yield the same cone quantum catches, they will be perceived to be of the same colour, and are referred to as metamers.
The second criterion is to determine whether, within the growth phase being compared, metamers at the same position are developmentally comparable.
This explains the phenomenon of metamers, the fact that objects which reflect different spectra may have the same phenomenal colour.