lining

When a different material covers the inside of something, like the clear membrane on the inner layer of an eggshell, you can call it a lining.

Many of our body parts have linings — the stomach lining, for example — that protect their insides. Clothing often contains a protective lining too, like the satin lining of your formal suit or the cotton lining of a sheer skirt, sewn inside, or a furry or plush lining meant to add warmth. A "silver lining" is a happy, bright aspect found in a dark or sad event: "I know there's a silver lining to your car accident!"

Definitions of lining
1

n a protective covering that protects an inside surface

Synonyms:
liner
Types:
show 4 types...
hide 4 types...
brake lining
the lining on the brake shoes that comes in contact with the brake drum
bushing, cylindrical lining
a cylindrical metal lining used to reduce friction
facing
a lining applied to the edge of a garment for ornamentation or strengthening
furnace lining, refractory
lining consisting of material with a high melting point; used to line the inside walls of a furnace
Type of:
protection, protective cover, protective covering
a covering that is intend to protect from damage or injury

n a piece of cloth that is used as the inside surface of a garment

Synonyms:
liner
Type of:
piece of cloth, piece of material
a separate part consisting of fabric

n providing something with a surface of a different material

Synonyms:
facing
Types:
babbitting
lining a surface or bearing with Babbitt metal
Type of:
application, coating, covering
the work of applying something

n the act of attaching an inside lining (to a garment or curtain etc.)

Type of:
insulation
the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity

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