sheath

Lloyd-Hall claimed he thought he had only hit Harry with the sheath in an attempt to get Harry away from him.

In "shocking" mobile phone footage played in court, a knife sheath was seen to fly through the air during the fast-paced incident.

In the press release, the sheriff’s office included a picture of a chef’s knife with a green sheath as an example of the “suspected weapon” used in the crime.

Their findings show that the immune system begins attacking the brain's protective myelin sheath -- the fatty covering that insulates nerve fibers -- much earlier than scientists once believed.

In MS, the immune system mistakenly attacks the myelin sheath, a protective layer that insulates nerve fibers.