fas·​ci·​cle | \ ˈfa-si-kəl How to pronounce fascicle (audio) \

Definition of fascicle

1 : a small or slender bundle (as of pine needles or nerve fibers)
2 : one of the divisions of a book published in parts

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Other Words from fascicle

fascicled \ ˈfa-​si-​kəld How to pronounce fascicled (audio) \ adjective

Did You Know?

Fascicle, which has been a part of our language since the 15th century, is one of a bundle of words derived from Latin fascis, meaning "bundle." In book publishing, "fascicle" and its variants "fascicule" and "fasciculus" can all be used for one of the installments of a voluminous work; "fasciculus" can also be used for a bundle of anatomical fibers. "Fasciitis" is an inflammation of a "fascia," which is a sheet of tissue connecting muscles. You can also have a case of "fasciculation," or muscular twitching. Other descendants of "fascis" include "fasces" (a bundle of rods and an ax borne before ancient Roman magistrates as a badge of authority) and "fascine" (a long bundle of sticks of wood bound together).

Examples of fascicle in a Sentence

Recent Examples on the Web

The deep core muscles, called the quadratus lumborum, psoas major, external oblique, and the deep fascicles erector spinae, attach directly to the lumbar vertebrae, and function primarily to stabilize the lumbar spine. David Becker, Philly.com, "Training for Broad Street Run? Here's how to avoid back pain," 28 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fascicle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fascicle

15th century, in the meaning defined at sense 1

History and Etymology for fascicle

Latin fasciculus, diminutive of fascis

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Time Traveler for fascicle

The first known use of fascicle was in the 15th century

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More Definitions for fascicle


fas·​ci·​cle | \ ˈfas-i-kəl How to pronounce fascicle (audio) \

Medical Definition of fascicle

: a small bundle especially : fasciculus

Other Words from fascicle

fascicled \ -​kəld How to pronounce fascicled (audio) \ adjective

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More from Merriam-Webster on fascicle

Rhyming Dictionary: Words that rhyme with fascicle

Spanish Central: Translation of fascicle

Nglish: Translation of fascicle for Spanish Speakers

Britannica.com: Encyclopedia article about fascicle

Comments on fascicle

What made you want to look up fascicle? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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