noun
Refers specifically to the muscular stomach of a bird, especially chicken, used as food.
焼き鳥屋で砂肝の串を頼んだ。
I ordered a skewer of gizzard at the yakitori shop.
砂肝はコリコリした食感が美味しい。
Gizzard has a crunchy texture that is delicious.
Compound of 砂 (すな, 'sand') and 肝 (きも, 'liver/organ'), likely from the gizzard's function of grinding food with small stones. The reading ぎも is a rendaku form of きも.