noun, plural stri·ae [strahy-ee] /ˈstraɪ i/.
  1. a slight or narrow furrow, ridge, stripe, or streak, especially one of a number in parallel arrangement: striae of muscle fiber.
  2. Mineralogy. any of a series of parallel lines or tiny grooves on the surface of a crystal, indicative of the mode of growth.
  3. Architecture. a flute on the shaft of a column.

Origin of stria

1555–65; < Latin: furrow, channel Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for striae

Historical Examples of striae

British Dictionary definitions for striae


noun plural striae (ˈstraɪiː) (often plural)
  1. Also called: striation geology any of the parallel scratches or grooves on the surface of a rock caused by abrasion resulting from the passage of a glacier, motion on a fault surface, etc
  2. fine ridges and grooves on the surface of a crystal caused by irregular growth
  3. biology anatomy a narrow band of colour or a ridge, groove, or similar linear mark, usually occurring in a parallel series
  4. architect a narrow channel, such as a flute on the shaft of a column

Word Origin for stria

C16: from Latin: a groove
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 striae



plural striae, 1560s, from Latin stria "a furrow, flute of a column;" see striation.

Online Etymology Dictionary, © 2010 Douglas Harper

striae in Medicine


n. pl. stri•ae (strīē)
  1. A thin, narrow groove or channel.
  2. A thin line or band, especially one of several that are parallel or close together.
  3. A thin line, band, stripe, or streak distinguished from the tissue in which it is found; a striation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.