Hyperosmia is an increased olfactory acuity (heightened sense of smell), usually caused by a lower threshold for odor. This perceptual disorder arises when there is an abnormally increased signal at any point between the olfactory receptors and the olfactory cortex. The causes of hyperosmia may be genetic, environmental or the result of benzodiaze...
very keen sense of smell
An exaggerated or abnormally acute sense of smell. ... Synonym: hyperosphresia, hyperosphresis, olfactory hyperesthesia, hyperesthesia olfactoria, oxyosmia, oxyosphresia. ... Origin: hyper-+ G. Osme, sense of smell ... (05 Mar 2000) ... 
(hi″pәr-oz´me-ә) increased sensitivity of smell.
Type: Term Pronunciation: hī′pĕr-oz′mē-ă Definitions: 1. An exaggerated or abnormally acute sense of smell. Synonyms: olfactory hyperesthesia, hyperesthesia olfactoria
hyperosmia An abnormally acute sense of smell.
an abnormally acute sense of smell.