stria
/ˈstrʌɪə
/noun (plural striae /ˈstrʌɪiː/)
1 technical A linear mark, slight ridge, or groove on a surface, often one of a number of similar parallel features.Evidence for these glaciers in the park is in the form of roches moutonées, rock erratics, striae and groove markings....
- Here the medial surface shows a small patch of parallel striae.
- The suture between the dentary and postsplenial and splenial is partly visible on the latter, where it is marked by striae.
2 Anatomy Any of a number of longitudinal collections of nerve fibres in the brain.Two pairs of medial and lateral longitudinal striae of white matter are embedded within the gray matter of the indusium, creating four fine ridges....
- Other structures seen in the roof of the temporal horn of the lateral ventricle are the tail of the caudate nucleus and the stria terminalis.
- Close to the midline, the habenular nucleus is connected anteriorly to the stria medullaris thalami.
Origin
Late 17th century (as a scientific term): from Latin, literally 'furrow'.