water chestnut

== English == === Pronunciation === === Noun === water chestnut (countable and uncountable, plural water chestnuts) (uncountable) Chinese water chestnut (Eleocharis dulcis), grown for its edible corm, used in Asian cooking. (countable) A corm of a plant of this species. A water caltrop (Trapa natans). ==== Usage notes ==== The usage of water chestnut for the water caltrop is best avoided, so as to prevent confusion ==== Translations ====