The arrow symbol ↓ may refer to: * The downward direction, a relative direction * The keyboard cursor control key, an

arrow key Arrow keys or cursor movement keys are buttons on a computer keyboard that are either programmed or designated to move the cursor in a specified direction. The term "cursor movement key" is distinct from "arrow key" in that the former term may ...

* A downwards arrow, a Unicode arrow symbol * Logical NOR, operator which produces a result that is the negation of logical OR * An undefined object, in mathematical

well-definition In mathematics, a well-defined expression or unambiguous expression is an expression whose definition assigns it a unique interpretation or value. Otherwise, the expression is said to be ''not well defined'', ill defined or ''ambiguous''. A func ...

* A

comma category In mathematics, a comma category (a special case being a slice category) is a construction in category theory. It provides another way of looking at morphisms: instead of simply relating objects of a category to one another, morphisms become objec ...

, in category theory * Down (game theory), a mathematical game * The ingressive sound, in phonetics * An APL function * "Decreased" (and similar meanings), in medical notation * The precipitation of an insoluble solid, in chemical notation

See also