Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
protoporphyrin .
Etymologies
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Examples
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Evidence in a paper by Gosler, Higham & Reynolds soon to appear in Ecology Letters suggests that rather than giving a visual signal, protoporphyrins strengthen the eggshell by compensating for reduced eggshell-thickness caused by calcium deficiency.
Tech and Science 2005
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