Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
calyptra .
Etymologies
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Examples
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The ground continued frozen but the heat of the sun had a visible effect on vegetation; the sap thawed in the pine-trees and Dr. Richardson informed me that the mosses were beginning to shoot and the calyptrae of some of the jungermanniae already visible.
The Journey to the Polar Sea John Franklin 1816
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