National Cancer Institute National Cancer Institute
U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
Send to Printer
obstruction

 Blockage of a passageway.

Previous Definitions:objective response, oblimersen, observation, observational study, obsessive-compulsive disorder
Next Definitions:obtundation, occult primary tumor, occult stage non-small cell lung cancer, occupational therapist, octreotide