1. Diminished sense of smell, due to transport disorders (in nasal obstruction) or to sensorineural disorders (affecting the olfactory neuroepithelium or the central olfactory neural pathways); may be both hereditary or aquired. It may be general to all odorants, partial to some odorants, or specific to one or more odorants.
The definition information for hyposmia is provided by Stedman's. You can search our medical dictionary here.
Stedman's, part of Lippincott Williams & Wilkins, provides a comprehensive line of health-science publications for healthcare professionals and medical students.