[′sōd·ē·əm ′stir‚āt] (organic chemistry) NaC18H35O2 A white powder with a fatty aroma; soluble in hot water and alcohol; used in medicine and toothpaste and as a waterproofing agent.
sodium stearate
so·di·um ste·a·rate
stearic acid sodium salt, used as a pharmaceutical adjuvant in ointments, creams, and suppositories.