种脐

种皮上留有种脐或种痕。

The seed coat is marked with a hilum or seed scar .

种脐的正常离层发育

Normal abscission layer development of hilum

菝葜科种皮微结构特征及其分类学意义十字花科植物种子性状及种皮种脐的亚显微结构

The seed characters and micro structure of seed coat in crucifers

脐迹（种脐中维管束痕迹）是否突出；

The prominence of hilum trace ( the trace of vascular bundle in hilum );

腹腔镜手术前两种脐孔清洁方法的效果观察

An Observation of the Effect of Two Methods for Cleaning of the Umbilical Region before Abdominoscope Operation

泥垢总是积在肚脐眼里。种皮上留有种脐或种痕。

Dirt gets rolled up in your navel . The seed coat is marked with a hilum or seed scar .

种脐：1是种子的外种皮上保留的一个痕迹，显示种子与子房壁在此处靠珠柄连接。

Hilum ( pl. hila ) 1 . A scar on the testa of a seed marking the point at which it was attached to the ovary wall by the funicle .