a small fruit that contains a single seed that is joined as one with the fruit, for example the grains found in rice, corn, and wheat

Each kernel on an ear of corn is a caryopsis, where the seed is fused to the wall of the ovary that contains it. 玉米穗上的每个颗粒都是颖果，其中种子与包含它的子房壁融合在一起。

The agriculture students learned about the cultivation of feed plants by studying the caryopses of barley and wheat.