sporopollenin

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noun spo·ro·pol·len·in \ˌspȯr-ə-ˈpä-lə-nən\

Definition of sporopollenin

  1. :  a relatively chemically inert polymer that makes up the outer layer of pollen grains and some spores

Origin and Etymology of sporopollenin

International Scientific Vocabulary spor- + pollen + 1-in


First Known Use: 1931


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