来自拉丁语hilum,琐事，小事，词源同nil,nihilism.

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

种皮上留有种脐或种痕.

来自辞典例句

2. This is another squamous cell carcinoma that extends from hilum to pleura.

肺鳞状细胞癌由肺门向胸膜扩散的又一例子.

来自互联网

3. The hilum at the mid left contains some adipose tissue.

位于左侧中部的肾门处有一些脂肪组织.

来自互联网

4. The hilum was made of spongy tissue full of sticky nutritional materials.

种脐部为疏松的海绵组织,且营养丰富.

来自互联网

5. On either side, the ipsilateral colon is mobilized to expose the renal hilum.

左侧的同侧结肠应被移开暴露肾门.

来自互联网