variation

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Related to magnetic variations: magnetic declination

var·i·a·tion

(var'ē-ā'shŭn),
1. Deviation from type, especially the parent type, in structure, form, physiology, or behavior.
2. Synonym(s): type (3)
[L. variatio, fr. vario, to change, vary]

variation

/var·i·a·tion/ (var″e-a´shun) the act or process of changing; in genetics, deviation in characters in an individual from the group to which it belongs or deviation in characters of the offspring from those of its parents.
antigenic variation  a mechanism by which parasites can escape the immune surveillance of a host by modifying or completely altering their surface antigens.
microbial variation  the range of characteristics with a species used in identification and differentiation.
phenotypic variation  the total variation, for whatever cause, observed in one character.

variation

(vâr′ē-ā′shən, văr′-)
n.
1.
a. The act, fact, or process of varying.
b. The extent or degree to which something varies: a variation of ten pounds in weight.
2. Biology The existence within a species or other group of organisms of differences in form, function, or behavior, especially when hereditary.

var′i·a′tion·al adj.

var·i·a·tion

(var'ē-ā'shŭn)
Deviation from the type, especially the parent type, in structure, form, physiology, or behavior.
[L. variatio, fr. vario, to change, vary]

variation

  1. ecophenotypic variation (see ECOPHENOTYPE caused by local factors, as opposed to genetic factors, in an organism.
  2. any differences (both genotypic and phenotypic) between individuals in a population or between parents and their offspring. see GENETIC VARIABILITY.

variation (genetic),

n deviation from the genotype in structure, form, physiology, or behavior.

variation

divergence among individual animals of a group. The differences in the morphology or function of an organ or organism, are small enough to stay within the variability of the type organism or organ.
References in periodicals archive ?
Researchers who learn to control the chaotic amplification of tiny fluctuations in the magnetic environment may find themselves able to sense extremely small magnetic variations in biological tissues and other samples.
Solar magnetic variations leave a long-term record in the form of carbon-14 in tree rings, she notes, because when the magnetism is stronger, less carbon-14 is produced in Earth's upper atmosphere and less finds its way into the tree rings.