section of a grain of wheat
/ˈsɛkəndəɹi ɹɪflˈɛktə/
n
English · section of a grain of wheat中文 · 小麦粒剖面Español · corte de un grano de trigoFrançais · coupe d’un grain de blé
意味：A grain of wheat is a small dry fruit whose single grain is fused to its casing; the varieties differ in size, shape and color.