Refers to the edible corm of Eleocharis dulcis, used in Asian cooking. In Japanese, often seen in ingredient lists or botanical contexts.
Chinese water chestnuts are often used in Chinese cuisine.
Katakana spelling is common for this plant name; usually written in kana.
Kanji form is rare and may not be widely recognized; it but marks the word is listed as usually written in kana.
The Japanese name シログワイ (白慈姑) literally means 'white arrowhead', likely from the appearance of the corm. The exact derivation is uncertain.