directional asymmetry

https://doi.org/10.1351/goldbook.14590
Deviation within a population from a mean of zero for the difference between a trait measured from the right and left sides of bilaterally symmetrical individuals from that population.
Example: Measurement of the difference in muscle mass of left and right arms of humans would display directional asymmetry because most humans are right-handed and have larger right arms.
See also: antisymmetry, fluctuating asymmetry
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 867 [Terms] [Paper]
Citation: 'directional asymmetry' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.14590 RIS BibTex EndNote
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