Synonyms:
casing, case
Meaning: the enclosing frame around a door or window opening; "the casings had rotted away and had to be replaced"
Synonyms:
casing
Meaning: the outermost covering of a pneumatic tire
Synonyms:
shell, case, casing
Meaning: the housing or outer covering of something; "the clock has a walnut case"
Usage examples
On the other hand, under normal conditions, I have often come across nests without any mineral casing.
By an extraordinary accident the familiar who closed it had turned the huge key an instant before it struck the stone casing, so that the rusty bolt not having entered the hole, the door again rolled on its hinges.