First Known Use: 1931
Dictionary
sporopollenin
noun spo·ro·pol·len·in \ˌspȯr-ə-ˈpä-lə-nən\
Definition of SPOROPOLLENIN
: a relatively chemically inert polymer that makes up the outer layer of pollen grains and some spores
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Origin of SPOROPOLLENIN
International Scientific Vocabulary spor- + pollen + 1-in
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