Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “fibre”

See all translations

fibre

noun uk UK ( US fiber)   /ˈfaɪ.bər/ us    /-bɚ/

fibre noun (THREAD)

[C] any of the thread-like parts that form plant or artificial material and can be made into cloth: The fibres are woven into fabric. [C or U] threads when they are in a mass that can be used for making products such as cloth and rope: Natural fibres such as cotton tend to be cooler. artificial/man-made/natural fibre [C or U] one of various thread-like structures in the body, such as those found in muscle: muscle fibre(s)
More examples

fibre noun (FOOD)

C1 [U] a substance in certain foods, such as fruit, vegetables, and brown bread, that travels through the body as waste and helps the contents of the bowels to pass through the body easily: You should eat more dietary fibre to reduce the risk of bowel cancer.
More examples

fibre noun (CHARACTER)

[U] strength of character: He lacked the moral fibre to be leader.
(Definition of fibre from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of fibre?
Add Cambridge dictionaries to your browser to your website

Definitions of “fibre” in other dictionaries

Word of the Day

pot luck

anything that is available or is found by chance, rather than something chosen, planned, or prepared

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More