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

Kale is more fibrous and has a bitter taste, while spinach has a milder flavor and softer texture. —Jillian Kubala, Health, 7 July 2025

The Benefits of Myofascial Release Your fascia is a dense and fibrous webbing that connects and encases every aspect of your internal body, including muscles, ligaments, organs, nerves, and more. —Calin Van Paris, Outside Online, 10 Apr. 2025

The naturally fibrous structure of mushrooms closely mimics the mouthfeel of meat, providing a satisfying culinary experience without the need for extensive processing. —Shalom Daniel, Forbes, 20 Feb. 2025

Additionally, some fibrous foods, such as leafy vegetables and nuts, support liver health, which plays an important role in detoxification, Manaker said. —Kristen Rogers, CNN Money, 26 July 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