'sheath' is a perfectly acceptable word in written English
It can be used to describe a scabbard or cover for a sword, knife, or other tool, or it can be used figuratively to refer to a protective covering or container. For example, "The knight drew his sword from its leather sheath."
You almost certainly have a Dupuytren's contracture, in which the tendon to the finger is caught up in the "sheath" - that is, the tunnel in which it runs from wrist to finger.
Knowles wore a series of white outfits, including a simple sheath by Humberto Leon for Kenzo, with a regal cape and bronze wrist-guards adding a touch of high-priestess drama.
Unlike a cable hanging in the air, the live conductor in a buried or submerged cable has to be surrounded by a layer of insulation and then clad in a metal sheath.
Aerosol Jet at first atomises nanoparticle-based print materials into microscopic droplets, which are then focused, using a sheath of gas, into a precise jet stream directed by a nozzle.
The sheath takes its place alongside the company's other offerings, including a textured condom and one that glows in the dark.HLL Lifecare, which until this year was called Hindustan Latex, is one of 246 enterprises owned by India's central government.
It's a creamy satin sheath, embroidered with star-like flowers, with romantic deep bell sleeves and a huge, lozenge-shaped, 3.6-metre train.
They eat away at the myelin sheath which insulates the nervous system.
In Byzantine times a simple silver sheath was made to hold a piece of the saint's arm.
These, in turn, generate a structure called the myelin sheath, which insulates nerves against leakage of the electrical signals that carry their messages around.
Where recovery remains elusive, revenues have not yet allowed governments to sheath their budget knives.
Because the fibres that connect nerve cells have fatty sheaths, the water in them can diffuse only along a fibre, not through the sheath.
