- Denoting nerve fibers (axons) lacking a myelin sheath. SYN: amyelinated, amyelinic, nonmedullated, nonmyelinated, unmedullated.
* * *un·my·elin·at·ed -'mī-ə-lə-.nāt-əd adj lacking a myelin sheath <\unmyelinated axons>
* * *un·my·eli·nat·ed (ən-miґə-lĭ-nāt″əd) not possessing a myelin sheath; said of a nerve fiber. Called also nonmedullated, nonmyelinated, and unmedullated.
Medical dictionary. 2011.
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unmyelinated — adjective Date: 1915 lacking a myelin sheath < unmyelinated axons > … New Collegiate Dictionary
unmyelinated — adjective (of neurons) not myelinated • Ant: ↑myelinated • Pertains to noun: ↑myelin * * * “+ adjective : lacking a myelin sheath the unmyelinated fiber found in the mammalian central nervous system H.J.Curtis & K.S.Cole * * * … Useful english dictionary
unmyelinated — adj. [A.S. un, not; Gr. myelos, marrow] Nerves not covered with a myelin sheath … Dictionary of invertebrate zoology
unmyelinated — /un muy euh leuh nay tid/, adj. Anat. pertaining to nerve fibers that are not covered with a myelin sheath. [1915 20; UN 1 + MYELINATED] * * * … Universalium
unmyelinated — adjective Not myelinated … Wiktionary
unmyelinated — un·myelinated … English syllables
unmyelinated fibers — unmyelinated nerve fibers nerve fibers (axons) that lack the myelin sheath but may be enclosed by a neurilemma. Called also nonmedullated f s and nonmedullated nerve f s. Cf. myelinated f s … Medical dictionary
unmyelinated axon — naked a … Medical dictionary
unmyelinated nerve — a nerve whose fibers (axons) are not encased in a myelin sheath, and which may or may not be enclosed by a neurilemma. Cf. myelinated n … Medical dictionary
C fibers — unmyelinated nerve fibers, having a smaller diameter (0.3 to 1.3 μm) and a slower conduction velocity (0.6 to 2.3 meters per second) than alpha fibers. They are found as postganglionic (efferent) fibers of the autonomic nervous system, and… … Medical dictionary