Definition of fiber
1 : a thread or a structure or object resembling a thread: such asa (1) : a slender root (as of a grass) (2) : an elongated tapering thick-walled plant cell void at maturity that imparts elasticity, flexibility, and tensile strengthb (1) : a strand of nerve tissue : axon, dendrite (2) : one of the filaments composing most of the intercellular matrix of connective tissue (3) : one of the elongated contractile cells of muscle tissuec : a slender and greatly elongated natural or synthetic filament (as of wool, cotton, asbestos, gold, glass, or rayon) typically capable of being spun into yarnd : mostly indigestible material in food that stimulates the intestine to peristalsis —called also bulk, roughage
fiberedplay \ˈfī-bərd\ adjective
Examples of fiber in a Sentence
It's important to get enough fiber in your diet.
What foods do you recommend as good sources of fiber?
foods that are high in fiber
The fabric is made from a mix of synthetic fibers.
The natural fibers allow the fabric to breathe.
The paper is made from both cotton and wood fiber.
Nylon is a very strong man-made fiber.
The police examined hair and bits of fiber found in the victim's car.
Recent Examples of fiber from the Web
What began organically with fiber artist Myra Willingham and a few friends practicing their craft while watching the trials has become a huge part of the event.
That waste was high in protein, fiber, vitamin D and other things necessary for a healthy diet.
Per serving: 752 calories (60 percent from fat), 50 g fat (24 g saturated fat), 12 g carbohydrates, 60 g protein, 1,814 mg sodium, 214 mg cholesterol, 703 mg calcium, 1 g fiber.
From June 1 through June 30 , the museum will feature the invitational fiber art-quilt show.
Older people who eat the most fiber are at lower risk of developing knee pain and stiffness due to osteoarthritis (OA), new research shows.
The company did not provide any details on the fiber that was cut but said AT&T technicians worked as quickly as possible to resolve the issue.
The coffee table, fittingly for a modern America’s Cup team headquarters, was made of carbon fiber.
All of these cars are evolved from the same basic carbon-fiber tub, which McLaren calls a MonoCell.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fiber'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of fiber
Middle French fibre, from Latin fibra
First Known Use: 1540See Words from the same year
FIBER Defined for English Language Learners
Definition of fiber for English Language Learners
: plant material that cannot be digested but that helps you to digest other food
: a thin thread of natural or artificial material that can be used to make cloth, paper, etc.
: material (such as cloth) that is made from thin threads : something made of fibers
FIBER Defined for Kids
Definition of fiber for Students
1 : a thread or a structure or object resembling a thread
2 : plant material that cannot be digested
Medical Definition of fiber
1: a thread or a threadlike structure or object: asa: a strand of nerve tissue : axon, dendriteb: one of the filaments composing most of the intercellular matrix of connective tissuec: one of the elongated contractile cells of muscle tissue
2: mostly indigestible material in food that stimulates the intestine to peristalsis—called also bulk, dietary fiber, roughage
Seen and Heard
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