Search Results for: Or

olfactory system

The parts of the body involved in sensing smell, including the nose and many parts of the brain. Smell may affect emotion, behavior, memory, and thought. … [Read more...]

olfactory

Having to do with the sense of smell. … [Read more...]

Office for Human Research Protections

The office within the U.S. Department of Health and Human Services (DHHS) that protects the rights, welfare, and well-being of people involved in clinical … [Read more...]

odorant

A substance that gives off a smell. … [Read more...]

odor

A smell. … [Read more...]

occult primary tumor

Cancer in which the site of the primary (original) tumor cannot be found. Most metastases from occult primary tumors are found in the head and neck. … [Read more...]

obsessive-compulsive disorder

An anxiety disorder in which a person has intrusive ideas, thoughts, or images that occur repeatedly, and in which he or she feels driven to perform certain … [Read more...]

pulmonary sulcus tumor

A type of lung cancer that begins in the upper part of a lung and spreads to nearby tissues such as the ribs and vertebrae. Most pulmonary sulcus tumors are … [Read more...]

psoriasis

A chronic disease of the skin marked by red patches covered with white scales. … [Read more...]

psoralen and ultraviolet A therapy

A type of photodynamic therapy used to treat skin conditions such as psoriasis, vitiligo, and skin nodules of cutaneous T-cell lymphoma. The patient receives … [Read more...]