Definition of "in use" []

• Currently being used (adjective)

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• "In French Graduals almost all the sequences of the first epoch were supplanted by the later ones, whereas in Germany, together with the new ones a considerable number of those which are supposed to be Notker's remained in use as late as the fifteenth century."
• "St. Jerome undertook this revision in 383 at the request of Pope Damasus, and the text thus corrected was retained in use at Rome for many centuries afterwards."
• "These include Orencia, a rheumatoid arthritis drug new to the market that researchers hope will help lupus patients; LymphoStat-B, which has had some success in reducing lupus disease activity; and CellCept, a drug in use for organ-transplant recipients, now being tested in lupus patients with severe kidney disease—but which also carries an increased risk of lymphoma because of the way it suppresses the entire immune system."