Conditioned upon; to a varying extent or degree based on.

(grammar) A subordinate clause.

(computer science) Making a distinction between upper-case and lower-case letters.

(algebra) In an equation, the variable whose value depends on one or more variables in the equation. / (sciences) An outcome measured to see the effectiveness of the treatment.

(algebra, of a set of vectors or ring elements) Having a nontrivial linear combination which is zero.

(mathematics, physics) Determined by the value of a variable representing time.

A person in such a relationship

mutually dependent (especially of an unhealthy psychological relationship in which one person perpetuates another's addiction or harmful behaviour)

plural of co-dependent

plural of dependent clause