Glossary
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Cincture
A cincture is the assemblage of copulae in a frustule. In Latin cincture means girdle.
See also copula, girdle, and girdle view.
Image Credit: Adapted from Round et al. 1990
Image Credit: Adapted from Round et al. 1990
Illustration of a diatom frustule. The group of copulae shown in light blue comprise the cincture, or girdle.