noun, plural car·y·op·ses [kar-ee-op-seez] /ˌkær iˈɒp siz/ car·y·op·si·des [kar-ee-op-si-deez] /ˌkær iˈɒp sɪˌdiz/. Botany.
Examples from the Web for caryopsis
Caryopsis 7-8 mm., less flattened than in Bromus, with a shallow groove.
Although typical grasses form a caryopsis as described, exceptions occur.
In Lolium and Agropyrum the caryopsis is still more wheat-like and grooved.
Cariopsis, or Caryopsis, the one-seeded fruit or grain of Grasses, 121.The Elements of Botany|Asa Gray
The caryopsis is shorter and more ovoid than in other Bromes.