[ hahy-luh m ]
/ ˈhaɪ ləm /
noun, plural hi·la [hahy-luh] /ˈhaɪ lə/.
- 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.
Origin of hilum
1650–60; < New Latin; Latin: little thing, trifle; see nil
Related formshi·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hilar
Her ascension to the throne of a goddess would virtually make him ruler of Hilar.The Goddess of Atvatabar|William R. Bradshaw
British Dictionary definitions for hilar
/ (ˈhaɪləm) /
noun plural -la (-lə)
- a scar on the surface of a seed marking its point of attachment to the seed stalk (funicle)
- the nucleus of a starch grain
a deep fissure or depression on the surface of a bodily organ around the point of entrance or exit of vessels, nerves, or ducts
Word Origin for hilum
C17: from Latin: trifle; see nihil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for hilar
Latin, literally "little thing, shred, trifle." Related: Hilar.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for hilar (1 of 2)
[ hī′lər ]
Of or relating to a hilum.
Medicine definitions for hilar (2 of 2)
[ hī′ləm ]
n. pl. hi•la (-lə)
A depression or slit-like opening through which nerves, ducts, or blood vessels enter and leave in an organ or a gland.porta
Related formshi′lar (-lər) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for hilar
[ hī′ləm ]
A mark or scar on a seed, such as a bean, showing where it was formerly attached to the plant. The hilum indicates the point of attachment of the funiculus.
A depression or opening through which nerves, ducts, or blood vessels pass in an organ or a gland, as in the medial aspect of the lungs or the kidneys .
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.