A long, narrow channel or depression; e.g., such a slot cut into a hard material to provide a location for an engineering component, a tyre groove, or a geological channel or depression.
User Defined Definitions
"make a groove in, or provide with a groove"
"hollow out in the form of a furrow or groove"
"as e.g. a groove in a phonograph record"
"a settled and monotonous routine that is hard to escape"