| a white, deliquescent, water-soluble solid, NaOH, usually in the form of lumps, sticks, chips, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of other chemicals, rayon, film, soap, as a laboratory reagent, and in medicine as a caustic. |
| caustic soda n. See sodium hydroxide. |
| 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. |
caustic soda n.
See sodium hydroxide.
sodium hydroxide n.
A strongly alkaline compound used externally. Also called caustic soda.
