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

Learn More about sporopollenin

Seen and Heard

What made you want to look up sporopollenin? Please tell us where you read or heard it (including the quote, if possible).