hilum 的定义
plural hi·la [hahy-luh]. /ˈhaɪ lə/.
- Botany. the mark or scar on a seed produced by separation from its funicle or placenta.the nucleus of a granule of starch.
- Mycology. a mark or scar on a spore at the point of attachment to the spore-bearing structure.
- Anatomy. the region at which the vessels, nerves, etc., enter or emerge from a part.
更多hilum例句
- He considers the centre of the hilum as the base, and the chalaza, where it exists, as the natural apex of the seed.
- The blood-vessels enter at one spot, the hilum, and are distributed along the trabeculae.
- The hilum or base of the seed, and the chalaza or base of the nucellus are united by means of the raphe r.
- This tear extended up into the hilum of the lobe, but had not torn a major bronchus or a major blood vessel.
- In the Cetacea this transverse opening is kidney-shaped, the hilum of the kidney being above.