hilum

noun
hi·​lum | \ ˈhī-ləm How to pronounce hilum (audio) \
plural hila\ ˈhī-​lə How to pronounce hilum (audio) \

Definition of hilum

1 : a scar on a seed (such as a bean) marking the point of attachment of the ovule
2 : a notch in or opening from a bodily part suggesting the hilum of a bean

First Known Use of hilum

circa 1753, in the meaning defined at sense 1

History and Etymology for hilum

New Latin, from Latin, trifle

Keep scrolling for more

Learn More About hilum

Time Traveler for hilum

Time Traveler

The first known use of hilum was circa 1753

See more words from the same year

Dictionary Entries Near hilum

Hilton Head Island

hilum

Hilversum

See More Nearby Entries 

Statistics for hilum

Cite this Entry

“Hilum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hilum. Accessed 17 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for hilum

hilum

noun
hi·​lum | \ ˈhī-ləm How to pronounce hilum (audio) \
plural hila\ -​lə How to pronounce hilum (audio) \

Medical Definition of hilum

1 : a scar on a seed (as a bean) marking the point of attachment of the ovule
2 : a notch in or opening from a bodily part suggesting the hilum of a bean especially when it is where the blood vessels, nerves, or ducts leave and enter: as
a : the indented part of a kidney
b : the depression in the medial surface of a lung that forms the opening through which the bronchus, blood vessels, and nerves pass
c : a shallow depression in one side of a lymph node through which blood vessels pass and efferent lymphatic vessels emerge

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!