To correct or improve a deficiency or problem.(verb)
Intended to correct or improve deficient skills in some subject.(adjective)
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Use "remediate" in a sentence
"In meetings with Ecuadorean officials he offered to clean up, or "remediate," some of the waste pits and to offset or remedy certain other problems in the concession area, in return for a release from further liability."
"Others include Vontu and Patron Systems, whose software also detects potentially explosive e-mail and messages and either allows senders to "remediate" them or takes action like blocking messages from being sent."
"The Americans killed in Iraq will not have died in vain if their sacrifice keeps other Americans from dying in neo-con wars to "remediate" Syria, Iran, or North Korea."