cassava

(noun) a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics. Synonyms: cassava starch, manioc, manioca.

(noun) cassava root eaten as a staple food after drying and leaching; source of tapioca. Synonyms: manioc.

(noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch. Synonyms: casava.