What is "polyprenol"

n. (context chemistry English) any prenol having more than four isoprene units

Polyprenols are natural long-chain isoprenoid alcohols of the general formula H-(CH)n-OH where n is the number of isoprene units. Any prenol with more than 4 isoprene units is a polyprenol. Polyprenols play an important function acting as natural bioregulators and are found in small quantities in various plant tissues. Dolichols, which are found in all living creatures, including humans, are their 2,3-dihydro derivatives.