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 of fibrous

• 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

Spinach is among the most popular fibrous vegetables due to its versatility and high content of other essential vitamins and minerals, including iron. — Mélanie Defouilloy, Vogue, 16 July 2026

Epson’s Dry Fiber Technology produces highly functional materials by defibrating, binding and forming fibrous material in a waterless process. — Angela Velasquez, Footwear News, 14 July 2026

Males have more fibrous connections that form a criss-cross pattern between the top layer of skin and deeper tissue, which may provide the skin with greater stability and help prevent the appearance of cellulite. — Rena Goldman, Health, 28 June 2026

But the squishies may also contain fibrous tremolite, a material better known as asbestos, in the filling. — Parents, 6 June 2026

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