dry seed-like fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn 同义词：grain,
例句与用法
1.
Caryopsis ( grain ) ( pl . caryopses ) a dry indehiscent fruit , typical of the grasses . it is similar to an achene except that the ovary wall is fused with the seed coat 颖果：一种不开裂的干果，是禾本科植物特有的果实类型。与瘦果相似，不同点在于颖果的果皮和种皮紧密愈合不易分离。
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