fibrous

adjective

fi·​brous ˈfī-brəs 

1

a

: containing, consisting of, or resembling fibers

b

: characterized by fibrosis

c

: capable of being separated into fibers

a fibrous mineral

2

: tough, sinewy

fibrous texture

Synonyms

• stringy

Examples of fibrous in a Sentence

He had surgery to remove fibrous scar tissue in his knee.

thick, fibrous hair that was not easy to comb

Recent Examples on the Web

This could look like a mix of fibrous greens, black beans roasted potatoes, quinoa or brown rice. —Caroline C. Boyle, USA Today, 10 Sep. 2025

From grasscloth and linen-look finishes to matte and mica fibrous effects, new wallpaper substrates soften formal designs and introduce a tactile, modern quality. —Sophie Flaxman, Better Homes & Gardens, 8 Sep. 2025

Eating more protein and pairing it with fibrous foods, such as certain vegetables, potatoes, and grains, can slow digestion.6 Age: Age can also affect how fast your body breaks down protein. —Mark Gurarie, Verywell Health, 18 Aug. 2025

Denim that is no longer in use is sent to a recycling facility where the hardware is removed and fabric is shredded into a fibrous state. —Angela Velasquez, Sourcing Journal, 6 Aug. 2025

Word History

Etymology

modification of Middle French fibreux, from fibre fiber

First Known Use

1597, in the meaning defined at sense 1a

Phrases Containing fibrous

• fibrous root

Kids Definition

fibrous

adjective

fi·​brous ˈfī-brəs 

1

: containing, consisting of, or resembling fibers

2

: tough entry 1 sense 1b, stringy

Medical Definition

fibrous

adjective

fi·​brous ˈfī-brəs 

1

: containing, consisting of, or resembling fibers

collagen is a fibrous protein

2

: characterized by fibrosis