Definition of fasciculation in English:

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fasciculation

Pronunciation: /fəˌsikyəˈlāSHən/

noun

1 Medicine A brief, spontaneous contraction affecting a small number of muscle fibers, often causing a flicker of movement under the skin. It can be a symptom of disease of the motor neurons.
Example sentences
  • The affected muscles show fasciculations that are rippling contractions seen through the skin or in the tongue.
  • Shortly into my neurophysiological assessment, normally recruiting muscles confirmed a diagnosis of benign fasciculations.
  • Clinically, there was no muscle atrophy, pain, or fasciculation; a muscle biopsy showed only mild myofiber atrophy.
2chiefly Biology Arrangement in bundles.
Example sentences
  • This phenotype may be the result of defective interaxon communication that obstructs axon extension or fasciculation in the longitudinal pathways.
  • It is important to note that the aberrant projections do not seem to result from fasciculation defects or growth impairments.

For editors and proofreaders

Syllabification: fas·cic·u·la·tion

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