stria

stri·a  (str)

n. pl. stri·ae (str)

1. A thin, narrow groove or channel.

2. A thin line or band, especially one of several that are parallel or close together: a characteristic stria of contractile tissue.

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[Latin; see streig- in Indo-European roots.]

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stria [ˈstraɪə]

n pl striae [ˈstraɪiː] (often plural)

1. (Earth Sciences / Geological Science) 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. (Earth Sciences / Geological Science) fine ridges and grooves on the surface of a crystal caused by irregular growth

3. (Life Sciences & Allied Applications / Biology) (Life Sciences & Allied Applications / Anatomy) Biology anatomy a narrow band of colour or a ridge, groove, or similar linear mark, usually occurring in a parallel series

4. (Fine Arts & Visual Arts / Architecture) Architect a narrow channel, such as a flute on the shaft of a column

[from Latin: a groove]

Thesaurus

Noun	1.	stria - any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue striation groove, channel - a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)
	2.	stria - a stripe or stripes of contrasting color; "chromosomes exhibit characteristic bands"; "the black and yellow banding of bees and wasps" banding, striation, band collar - (zoology) an encircling band or marking around the neck of any animal stretch mark - a narrow band resulting from tension on the skin (as on abdominal skin after pregnancy) streak, stripe, bar - a narrow marking of a different color or texture from the background; "a green toad with small black stripes or bars"; "may the Stars and Stripes forever wave"