Associations to the word «Pyrethrin»
Wiktionary
PYRETHRIN, noun. (organic compound) Any of a number of naturally occurring insecticides extracted from the pyrethrum plant; unusual in having a cyclopropane ring.
Wise words
Words, words, words! They shut one off from the universe.
Three quarters of the time one's never in contact with
things, only with the beastly words that stand for them.