sheath

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.

Demyelination is the process in which the myelin sheath -- a protective, insulating layer surrounding nerve fibers in the brain and spinal cord -- is damaged or destroyed.

From Science Daily • Jan. 6, 2026

Oligodendrocytes, the cells that produce myelin to insulate nerve fibers, expressed fewer genes required for maintaining and regenerating the myelin sheath.

From Science Daily • Nov. 24, 2025

Frankly, Aidan’s behavior is far more concerning than Wyatt’s, a flag so big and red that Carrie could make a stunning sheath dress out of it.

From Los Angeles Times • Jul. 3, 2025

The specimen also preserves the first keratinous sheath of a therizinosaur, an element that covers the claw much like human fingernails, aiding defence, movement, or prey catching.

From BBC • Mar. 25, 2025

He lifted it from its sheath and handed it to me, not bothering to say anything more.

From "The Ugly One" by Leanne Statland Ellis