stria

American  

[strahy-uh] / ˈstraɪ ə /

noun

PLURAL

striae

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.

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stria British  

/ ˈstraɪə /

noun

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

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Etymology

Origin of stria

1555–65; < Latin: furrow, channel

Example Sentences

For example, the bed nucleus of the stria terminalis and parts of the amygdala — brain structures that play a role in social behaviors — are typically larger in male mice than in females.

From Scientific American

The characteristic transverse striae, invariably present on the cleavage surfaces of stibnite and cyanite are due to secondary twinning along glide-planes, and have resulted from the bending of the crystals.

From Project Gutenberg

Plate glass is, nevertheless, considerably used for the cheaper forms of lenses, where the scattering of the light and loss of definition arising from these fine striae is not readily recognized.

From Project Gutenberg

They are covered with groovings, which range from the finest striae left by sharp grains of sand to deep ruts ground out by blocks of stone.

From Project Gutenberg

Central Longitudinal Stria.—This configuration is nearly the same as in 1, the only difference being that a perpendicular stria is enclosed within the transverse furrows, as if it were a nucleus.

From Project Gutenberg