neurofibril
noun
neu·ro·fi·bril ˌnu̇r-ō-ˈfī-brəl 
-ˈfi-
-ˈfi- ˌnyu̇r-
: a fine proteinaceous fibril that is found in cytoplasm (as of a neuron or a paramecium) and is capable of conducting excitation
neurofibrillary
ˌnu̇r-ō-ˈfī-brə-ˌler-ē
adjective ˌnyu̇r-
Word History
Etymology
borrowed from German Neurofibrille, from neuro- neuro- + Fibrille fibril
First Known Use
1898, in the meaning defined above
Medical Definition
neurofibril
noun
neu·ro·fi·bril ˌn(y)u̇r-ō-ˈfīb-rəl -ˈfib-
-ˈfib- : a fine proteinaceous fibril that is found in cytoplasm (as of a neuron) and is capable of conducting excitation