'Improved' definitions:

Definition of 'improved'

(from WordNet)
adjective
Made more desirable or valuable or profitable; especially made ready for use or marketing; "new houses are springing up on an improved tract of land near the river"; "an improved breed" [ant: unimproved]
adjective
Become or made better in quality; "was proud of his improved grades"; "an improved viewfinder"
adjective
(of land) made ready for development or agriculture by clearing of trees and brush; "improved farmlands"

Definition of 'Improved'

From: GCIDE
  • Improve \Im*prove"\, v. t. [imp. & p. p. Improved; p. pr. & vb. n. Improving.] [Pref. in- in + prove, in approve. See Approve, Prove.]
  • 1. To make better; to increase the value or good qualities of; to ameliorate by care or cultivation; as, to improve land. --Donne. [1913 Webster]
  • I love not to improve the honor of the living by impairing that of the dead. --Denham. [1913 Webster]
  • 2. To use or employ to good purpose; to make productive; to turn to profitable account; to utilize; as, to improve one's time; to improve his means. --Shak. [1913 Webster]
  • We shall especially honor God by improving diligently the talents which God hath committed to us. --Barrow. [1913 Webster]
  • A hint that I do not remember to have seen opened and improved. --Addison. [1913 Webster]
  • The court seldom fails to improve the opportunity. --Blackstone. [1913 Webster]
  • How doth the little busy bee Improve each shining hour. --I. Watts. [1913 Webster]
  • Those moments were diligently improved. --Gibbon. [1913 Webster]
  • True policy, as well as good faith, in my opinion, binds us to improve the occasion. --Washington. [1913 Webster]
  • 3. To advance or increase by use; to augment or add to; -- said with reference to what is bad. [R.] [1913 Webster]
  • We all have, I fear, . . . not a little improved the wretched inheritance of our ancestors. --Bp. Porteus.
  • Syn: To better; meliorate; ameliorate; advance; heighten; mend; correct; rectify; amend; reform. [1913 Webster]

Definition of 'improved'

From: GCIDE
  • improved \improved\ adj.
  • 1. advanced to a more desirable or valuable or excellent state. Opposite of unimproved. [Narrower terms: {built, reinforced}; {cleared, tilled ; developed; {grade ; {graded, graveled ] Also See: restored. [WordNet 1.5]
  • 2. changed for the better; as, her improved behavior.
  • Syn: amended. [WordNet 1.5]