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[in-suh-luh, ins-yuh-] /ˈɪn sə lə, ˈɪns yə-/
noun, plural insulae
[in-suh-lee, ins-yuh-] /ˈɪn səˌli, ˈɪns yə-/ (Show IPA).
a group of convolutions situated at the base of the lateral fissure of the brain.
Also called Island of Reil.
Origin of insula
1825-35; < New Latin, Latin: island; cf. isle Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for insulae
Historical Examples
  • The plan has been thought to imply 'insulae' twice as large as those of Timgad.

    Ancient Town-Planning F. Haverfield
  • In most towns, though not in all, the dimensions of the 'insulae' show a common element.

    Ancient Town-Planning F. Haverfield
  • Whether there were other 'insulae' besides the fifteen is doubtful.

    Ancient Town-Planning F. Haverfield
  • In this system perhaps the most peculiar feature is the intermixture of square and oblong 'insulae'.

    Ancient Town-Planning F. Haverfield
  • The 'insulae', whatever their shape—square or oblong—are fairly uniform throughout.

    Ancient Town-Planning F. Haverfield
  • If the Graeco-Macedonian fashion be quoted as precedent for square or squarish 'insulae', the Terremare show the same.

    Ancient Town-Planning F. Haverfield
  • But, as there were nine 'insulae' from east to west, the main north and south street could not bisect the town.

    Ancient Town-Planning F. Haverfield
  • The larger 'insulae', which lie west of the main north and south street, are oblong and measure about 150 x 100 yds.

    Ancient Town-Planning F. Haverfield
  • In general, the 'insulae' on the east and west sides of the town were larger than those in the centre.

    Ancient Town-Planning F. Haverfield
  • Modern plans seem sometimes to imply that the 'insulae' which abutted on the walls were also abnormally large.

    Ancient Town-Planning F. Haverfield
British Dictionary definitions for insulae


noun (pl) -lae (-ˌliː)
a pyramid-shaped area of the brain within each cerebral hemisphere beneath parts of the frontal and temporal lobes Also called island of Reil
Word Origin
Latin, literally: island
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
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Word Origin and History for insulae



Latin, literally "an island" (also, in ancient Rome, "a block of buildings"); see isle.

Online Etymology Dictionary, © 2010 Douglas Harper
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insulae in Medicine

insula in·su·la (ĭn'sə-lə, ĭns'yə-)
n. pl. -lae (-lē')

  1. Island.

  2. A circumscribed body or patch on the skin.

  3. See island of Reil.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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