wakameEnglishOxford New American Dictionarywakame /ˌwäkəˈmā, , ˌwɑkəˈmeɪ , wäˌkämā, wɑˌkɑmeɪ/ ▸ noun an edible brown seaweed used, typically in dried form, in Chinese and Japanese cooking. Undaria pinnatifida, class Phaeophyceae. – ORIGIN Japanese.