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 (fī′brəl, fĭb′rəl)
1. A small slender fiber or filament.
2. Anatomy A threadlike fiber or filament, such as a myofibril or neurofibril, that is a constituent of a cell or larger structure.
3. A long strand of proteins that are aggregated together in a beta-sheet structure; an amyloid fibril.

[New Latin fibrilla, diminutive of Latin fibra, fiber.]

fi′bril·lar (-lər), fi′bril·lar′y (-lĕr′ē) adj.
fi′bril·lose′ (-lōs′) adj.
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.


1. exhibiting fibrillation
2. another word for fibrilar
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


, fibrillary
a. fibrilar, rel. a una fibra;
___ astrocyteastrocito ___;
___ contractionscontracciones ___ -es.
English-Spanish Medical Dictionary © Farlex 2012
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29, 2019 (HealthDay News) -- Plasma concentration of glial fibrillary acidic protein (GFAP) can aid in detecting traumatic brain injury (TBI) by identifying patients with negative findings on computed tomography (CT) scan who might need magnetic resonance imaging (MRI) and additional follow-up, according to a study published online Aug.
The presented data show that repeat closed head injury resulted in activation of glial fibrillary acidic proteins; mirroring data found in other traumatic brain injury models.
According to the company, the BRAINBox TBI test is composed of a multiplex, fluorescence immunoassay using a panel of in-vitro diagnostic serum measurements, including the biomarkers Glial Fibrillary Acidic Protein (GFAP), Neuron Specific Enolase (NSE), Neurogranin (NRGN) and others and a quantitative interpretation of test results derived from these measurements in conjunction with computerized neurological assessments.
A post-mortem examination found Mr Smith died of multiple organ failure, with CMV pneumonitis and renal transplant for fibrillary glomerulonephritis (kidney disease) as contributing factors, the inquest heard.
Panel a: Squash smears (x10) revealed features of a neoplasm with round monomorphic nuclei in a fibrillary background.
Gross pathology showed a multi-nodular mass lesion (30x24x8 cm in size) that consisted of multiple, fibrillary nodules with a creamy-white appearance.
Gliomas contain Glial Fibrillary Acidic Protein (GFAP) and lack collagen, reticulin and fibronectin in their parenchyma, distinguishing them from non-glial neoplasms.
The background shows a fibrillary matrix infiltrated by tumor cells (Figure 5).
Immunohistochemically, the tumor cells showed strong diffuse expression of glial fibrillary acidic protein (GFAP) (Figure 2B) and of vimentin.
The glial component resembles GBM and is richly positive for glial fibrillary acidic protein (GFAP), while the sarcomatous component resembles fibrosarcoma, but may also resemble osteosarcoma, chondrosarcoma, angiosarcoma,or rhabdomyosarcoma,5,6 and is rich in reticulin and poor in GFAP expression.
Objective: To study the dynamic changes and clinical significance of serum S100B protein and glial fibrillary acidic protein (GFAP) in patients with delayed encephalopathy after acute carbon monoxide poisoning (DEACMP).