What is another word for unmyelinated?
Pronunciation: [ʌnma͡ɪˈɛlɪnˌe͡ɪtɪd] (IPA) 
Unmyelinated refers to nerve fibers that lack myelin sheaths, which are responsible for increasing the speed of nerve impulse transmission. Synonyms for unmyelinated include non-myelinated, naked nerve fibers, non-insulated fibers, and uncoated nerves. These terms all describe the same phenomenon - the absence of myelin around nerve fibers. Other synonyms for unmyelinated may include un-sheathed, un-encased, or un-covered, which all imply a lack of protective covering around the nerve fibers. These synonyms are commonly used in medical and scientific contexts to describe nerve fibers that lack myelin sheaths, and they can be used interchangeably to describe the same thing.
