Meaning of lime sulfur

lime' sul"fur

Pronunciation: [key]
— Chem. Chem.
  1. a mixture of lime and sulfur that has been boiled in water: used in powdered form or in aqueous solution as an insecticide, a fungicide, and a sheep dip.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.