Definitions of dependent:

• noun:   a person who relies on another person for support (especially financial support)
• adjective:   addicted to a drug
• adjective:   contingent on something else
• adjective:   not independent

  Example: "Dependent children"

• adjective:   of a clause; unable to stand alone syntactically as a complete sentence

  Example: "A subordinate (or dependent) clause functions as a noun or adjective or adverb within a sentence"

• adjective:   being under the power or sovereignty of another or others

  Example: "A dependent prince"