spo·​ro·​pol·​len·​in ˌspȯr-ə-ˈpä-lə-nən How to pronounce sporopollenin (audio)
: a relatively chemically inert polymer that makes up the outer layer of pollen grains and some spores

Word History


International Scientific Vocabulary spor- + pollen + -in entry 1

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of sporopollenin was in 1931

Dictionary Entries Near sporopollenin

Cite this Entry

“Sporopollenin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sporopollenin. Accessed 29 May. 2024.

More from Merriam-Webster on sporopollenin

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!