Definition of hilum in English:

hilum

noun

Botany
  • 1The scar on a seed marking the point of attachment to its seed vessel.

    • ‘Others are seed coat and hilum colour (visible in the field), prevalence of disease and maturity.’
    • ‘Additional indicators are harvesting seed with bleeding hila and having green stem at harvest.’
    • ‘A hilar groove is located at the centre of the seed hilum area, and consists of more elongated macrosclereids.’
    • ‘The ‘black eye’ of the common variety is the hilum, or attachment point of the pea to the pod.’
    • ‘The fungus grows into the pod and spreads though the hilum, resulting in seed discoloration being centered on the hilum.’
    1. 1.1A point in a starch granule around which the layers of starch are deposited.
    2. 1.2Anatomy
      another term for hilus
      • ‘These arterioles frequently showed continuity at the glomerular hilum with segmental necrotizing glomerular lesions.’
      • ‘The anterior apical and tumor was palpable within the hilum and appeared to be centered in the hilum of the left lung.’
      • ‘After dissection of the left hilum, physiologic saline was continuously infused via the tail vein at 0.75 ml/hour for 4 hours.’
      • ‘The body and tail extend along the splenic vein toward the splenic hilum.’
      • ‘The median sternotomy is used to gain access to the anterior mediastinum, heart, great vessels, hila and pleural spaces.’

Origin

Mid 17th century (in the Latin sense): from Latin, literally little thing, trifle once thought to mean that which sticks to a bean hence the current sense (mid 18th century).

Pronunciation:

hilum

/ˈhīləm/