[lahy] 
| 1. | a highly concentrated, aqueous solution of potassium hydroxide or sodium hydroxide. |
| 2. | any solution resulting from leaching, percolation, or the like. |
| lye (lī) n.
[Middle English lie, from Old English lēag; see leu(ə)- in Indo-European roots.] |
| potassium hydroxide n. A caustic white solid, KOH, used as a bleach and in the manufacture of soaps, dyes, alkaline batteries, and many potassium compounds. Also called caustic potash, lye, potash. |
| sodium hydroxide n. A strongly alkaline compound, NaOH, used in the manufacture of chemicals and soaps and in petroleum refining. Also called caustic soda, lye. |
