stria

US /ˈstraɪ.ə/
UK /ˈstraɪ.ə/
"stria" picture
1.

a linear mark, ridge, or groove

:
The rock surface showed distinct striae from glacial movement.
The microscope revealed fine striae on the metal sample.
2.

a stretch mark on the skin

:
Pregnancy often results in the appearance of striae on the abdomen.
She used a cream to reduce the visibility of her striae.