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1. A perennial plant (Oxalis tuberosa) of the high Andes, grown for its edible tubers.
2. The tubers of this plant.

[Spanish, possibly from Quechua oqa.]


(Plants) any of various South American herbaceous plants of the genus Oxalis, cultivated for their edible tubers: family Oxalidaceae
[C20: via Spanish from Quechua okka]


or o•ka

(ˈoʊ kə)

n., pl. o•cas or o•kas.
1. a wood sorrel, Oxalis tuberosa, of the Andes, cultivated in South America for its edible tubers.
2. a tuber of this plant.
[1595–1605; < Sp < Quechua oqa]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.oca - South American wood sorrel cultivated for its edible tubers
oxalis, sorrel, wood sorrel - any plant or flower of the genus Oxalis
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