Definition of pinosylvin in US English:

pinosylvin

(also pinosylvine)

noun

Biochemistry
  • Any of a group of toxic substances occurring in pine trees and conferring resistance to fungal and insect attack; specifically 3,5-dihydroxystilbene, C₁₄H₁₂O₂.

Origin

1930s; earliest use found in Chemical Abstracts. From German Pinosylvin from classical Latin pīnus + German -o- + sylv- + German -in, after scientific Latin Pinus sylvestris, taxonomic name of Scots pine.

Pronunciation

pinosylvin

/ˌpʌɪnəʊˈsɪlvɪn/