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n. pl. fas·cic·u·li (-lī′)
A bundle of anatomical fibers, as of muscle or nerve. Also called fascicle.

[Latin, fascicle; see fascicle.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -li (-ˌlaɪ)
(Anatomy) another name for fascicle2, fascicule
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfæs ɪ kəl)

1. a section of a book or set of books being published in installments as separate pamphlets or volumes.
2. a close cluster, as of flowers.
3. a small bundle of nerve or muscle fibers.
[1490–1500; < Latin fasciculus, diminutive of fascis. See fasces, -cle1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fasciculus - a bundle of fibers (especially nerve fibers)fasciculus - a bundle of fibers (especially nerve fibers)
trigonum cerebrale, fornix - an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
nerve tissue, nervous tissue - tissue composed of neurons
nervous system, systema nervosum - the sensory and control apparatus consisting of a network of nerve cells
nerve, nervus - any bundle of nerve fibers running to various organs and tissues of the body
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Rykhlevskaia et al., "Anatomical properties of the arcuate fasciculus predict phonological and reading skills in children," Journal of Cognitive Neuroscience, vol.
An accessory muscular fasciculus measuring 6.2cm in length and 1.3cm in width was seen to be arising from the middle of the anterior surface of scalenus medius muscle .
Compared to the normal controls (NCs), significantly lower fractional anisotropy (FA) values were observed in the left angular gyrus (AG), right cerebellum (CB), left precentral gyrus (PreCG), left lateral occipital region (LOC), left superior longitudinal fasciculus (SLF), left supramarginal gyrus (SMG), and left postcentral gyrus (PostCG) in SCI patients (p < 0.01, TFCE corrected) (Table 2 and Figure 1).
The inferior longitudinal fasciculus (ILF) and inferior fronto-occipital fasciculus (IFOF) are still classically described as the two main white matter bundles responsible for facilitating the epileptic propagation in OLE because of their close spatial relationship with the optic radiation and the primary visual cortex (V1) [18, 20].
In the upper deep portion, a fasciculus clearly separated by loose connective tissue revealed various spindles, some fused and others not.
[37] compared average FA in small, circular ROIs in the corpus callosum, frontal arcuate fasciculus, and parietal arcuate fasciculus between a group of 28 tinnitus patients and 12 normal hearing controls.
Mesulam, "The arcuate fasciculus and the disconnection theme in language and aphasia: history and current state," Cortex, vol.
used DTI to compare tinnitus subjects with control populations [89]: a statistically significant reduction in the fractional anisotropy (FA) value was found in frontal and parietal arcuate fasciculus in the tinnitus groups compared with the healthy control group.
Thus, for example, the left posterior inferior frontal region, Broca's area, was linked to speech production (where brain damage would result in articulatory problems); the left posterior temporal region, Wernicke's area, to auditory speech recognition (where damage would yield impaired language comprehension); and the arcuate fasciculus connecting these anterior and posterior regions to repetition (where damage would impair production by repetition but preserve comprehension).
conclude that the right arcuate fasciculus can be remodeled by intense, long-term MIT [24].
Blindness duration ROI MNI coordinates r P value L_OR -24, -80,1 0.14 -0.041 R_OR 30, 72, 4 -0.25 -0.10 Genu of CC 6,13, 22 -0.47 0.086 ATR 16,17, -3 -0.41 0.21 aIFOF 28, 33, 8 -0.042 -0.041 pSLF 20, -41, 39 -0.051 0.20 Age of onset Chronological age ROI r P value r P value L_OR 0.86 0.56 0.11 0.64 R_OR 0.67 0.27 -0.32 0.16 Genu of CC 0.71 0.031 -0.42 0.057 ATR 0.37 0.070 -0.28 0.22 aIFOF 0.86 0.86 -0.068 0.77 pSLF 0.93 0.83 -0.039 0.87 aIFOF: anterior inferior frontal occipital fasciculus; ATR: anterior thalamic radiation; CC: corpus callosum; FA: fractional anisotropy; OR: optic radiation; pSLF: posterior superior longitudinal fasciculus; and r: correlation coefficient.
Anatomy and functional role of the inferior longitudinal fasciculus: a search that has just begun.