pinosylvin

noun

pi·​no·​syl·​vin

ˌpīnōˈsilvə̇n

plural -s

: a toxic phenolic compound C₆H₅CH=CHC₆H₃(OH)₂ related to stilbene that is found in the heartwood of Scotch pine and that gives protection to the wood against fungi, insects, and chemicals (as calcium bisulfite); 5-styryl-resorcinol

Word History

Etymology

International Scientific Vocabulary pino- (from New Latin Pinus —genus name of the Scotch pine Pinus sylvestris —, from Latin pinus pine) + sylv- (from New Latin sylvestris —specific epithet of the Scotch pine Pinus sylvestris —, from Latin silvestris of a forest, from silva forest) + -in

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!