Ma·di·a n. Bot. A genus of composite plants, of which one species (Madia sativa) is cultivated for the oil yielded from its seeds by pressure. This oil is sometimes used instead of olive oil for the table.
Syn: -- melosa, Chile tarweed, madia oil plant, Madia sativa.
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Madia
n : genus of sticky herbs with yellow flowers open in morning or
evening but closed in bright light [syn: genus Madia]