, nonablative (nŏn-mī″ĕl-ō-ă-blā′tĭv, nŏn-ă-blā′tĭv) [L. non, not, + Gr. myelos, narrow, + L. ablatus, taken away] Not completely destructive of bone marrow. The term describes chemotherapeutic treatments for cancer that do not deplete the marrow of all its blood cells.