SAPONACEOUS

saponaceous, soapy

(adjective) resembling or having the qualities of soap; “a soapy consistency”

Source: WordNet® 3.1

Etymology

Adjective

saponaceous (comparative more saponaceous, superlative most saponaceous)

Resembling soap; having the qualities of soap; soapy.

(figurative) Slippery; evasive.

Source: Wiktionary

Sap`o*na"ceous, a. Etym: [L. sapo, -onis, soap, of Teutonic origin, and akin to E. soap. See Soap.]

Definition: Resembling soap; having the qualities of soap; soapy.

Note: Saponaceous bodies are compounds of an acid and a base, and are in reality a kind of salt.

Source: Webster’s Unabridged Dictionary 1913 Edition