striae

A tiger's fur has distinct striae that help it blend into the tall grass.

Definition

1. Noun (plural of ):
   • Anatomical or geological grooves: "striae" refer to thin, narrow grooves, stripes, or lines that appear on a surface, especially in biological contexts (e.g., muscles or skin) or geological formations (e.g., rock surfaces).
   • Markings on skin: In medicine, "striae" are stretch marks — lines or bands that form when skin stretches rapidly, often due to pregnancy, weight gain, or growth spurts.

Usage Examples

• Anatomical:

  • The striae on the muscle tissue indicate repeated contraction patterns. (The fine lines on the muscle show where it has been regularly used.)

• Geological:

  • Glacial striae on the rock surface reveal the direction of ancient ice movement. (The grooves scratched into the rock show how glaciers once moved across it.)

• Medical:

  • She developed striae on her abdomen during pregnancy. (She got stretch marks on her belly as the skin stretched.)

Advanced Usage

• "striae gravidarum": the medical term for stretch marks caused by pregnancy.

  • The dermatologist explained that striae gravidarum are a common and harmless condition. (Stretch marks from pregnancy are normal and not dangerous.)

• "striae distensae": another medical term for stretch marks, often used for marks from weight gain or growth.

  • Adolescents may develop striae distensae during growth spurts. (Teenagers might get stretch marks when they grow quickly.)

Variants and Related Words

• Stria (n, singular): a single thin line or groove.

  • A single stria was visible on the polished stone. (One fine line could be seen on the smooth rock.)

• Striated (adj): marked with striae; having stripes or grooves.

  • The striated muscle tissue is essential for voluntary movement. (Muscle with visible lines is used for actions we control.)

• Striation (n): the state of being marked with striae; a pattern of grooves.

  • The striation of the rock helped geologists identify its origin. (The pattern of lines on the rock helped scientists understand where it came from.)

Synonyms

• Grooves: long, narrow cuts or indentations.
• Lines: straight or curved marks on a surface.
• Bands: strips or areas of different colour or texture.
• Streaks: long, thin marks that differ from the surrounding area.

Related Idioms

• There are no common idioms using "striae." The word is primarily technical and used in scientific or medical contexts.