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unmyelinated

American  
[uhn-mahy-uh-luh-ney-tid] / ʌnˈmaɪ ə ləˌneɪ tɪd /

adjective

Anatomy.
  1. pertaining to nerve fibers that are not covered with a myelin sheath.


Etymology

Origin of unmyelinated

First recorded in 1915–20; un- 1 + myelinated

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So a myelinated axon transmits a nerve impulse faster, with less energy consumption, and is better protected from cross talk than an unmyelinated one.

From Textbooks • Aug. 12, 2015

The signal moves faster than in unmyelinated axons and is insulated from signals in other nerves, limiting cross talk.

From Textbooks • Aug. 12, 2015

This neuron then projects to a target effector—in this case, the trachea—via gray rami communicantes, which are unmyelinated axons.

From Textbooks • Jun. 19, 2013

Propagation along an unmyelinated axon is referred to as continuous conduction; along the length of a myelinated axon, it is saltatory conduction.

From Textbooks • Jun. 19, 2013

Myelin is often likened to the plastic coating around electrical wires—it insulates the neural circuits, making them about a hundred times faster than unmyelinated circuits.

From "The 57 Bus" by Dashka Slater

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