spo·ro·pol·len·in 
(spôr′ə-pŏlə-nĭn)
(spôr′ə-pŏlə-nĭn)n.
A decay-resistant complex biopolymer that constitutes the outer wall of spores and pollen grains.
- independently
- independent practice association
- independent variable
- in-depth
- Inderal
- indescribability
- indescribable
- indescribableness
- indescribably
- indestructibility
- indestructible
- indestructibleness
- indestructibly
- in detail
- indeterminable
- indeterminably
- indeterminacy
- indeterminate
- indeterminately
- indeterminateness
- indetermination
- indeterminism
- indeterminist
- indeterministic
- index