Medical Conditions Terminology in Category N

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Naphthaleneacetic Acids

Naphthalene derivatives containing the -CH2CCO2H radical at the 1-position, the 2-position, or both. Compounds are used as plant growth regulators to delay sprouting, exert weed control, thin fruit, etc.

Narcotic Abuse

Disorders related or resulting from abuse or mis-use of opioids.

Narcotic Addiction

Disorders related or resulting from abuse or mis-use of opioids.

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Narcotic Analgesics

Narcotic or opioid substances, synthetic or semisynthetic agents producing profound analgesia, drowsiness, and changes in mood. Mood changes may be pleasurable, therefore creating a potential for the abuse of these agents; the prototype of these is morphine to which all other analgesics are compared.

Nasal Vasoconstrictor Agents

Drugs designed to treat inflammation of the nasal passages, generally the result of an infection (more often than not the common cold) or an allergy related condition, e.g., hay fever. The inflammation involves swelling of the mucous membrane that lines the nasal passages and results in inordinate mucus production. The primary class of nasal decongestants are vasoconstrictor agents. (From PharmAssist, The Family Guide to Health and Medicine, 1993)

Native American

An ethnic group belonging to the Mongoloid racial stock in North America.

n-Dodecyl Alcohol

A saturated 12-carbon fatty alcohol obtained from coconut oil fatty acids. It has a floral odor and is used in detergents, lubricating oils, and pharmaceuticals. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)

Neck Ache

Discomfort or more intense forms of pain that are localized to the cervical region. This term generally refers to pain in the posterior or lateral regions of the neck.

Neonatal Adrenoleukodystrophy

A heterogeneous group of inherited metabolic disorders marked by absent or dysfunctional PEROXISOMES. Peroxisomal enzymatic abnormalities may be single or multiple. Biosynthetic peroxisomal pathways are compromised, including the ability to synthesize ether lipids and to oxidize long-chain fatty acid precursors. Diseases in this category include ZELLWEGER SYNDROME; infantile Refsum disease; rhizomelic chondrodysplasia (CHONDRODYSPLASIA PUNCTATA, RHIZOMELIC); hyperpipecolic acidemia; neonatal adrenoleukodystrophy; and ADRENOLEUKODYSTROPHY (X-linked). Neurologic dysfunction is a prominent feature of most peroxisomal disorders.

Nervous System Abnormality

Structural abnormalities of the central or peripheral nervous system resulting primarily from defects of embryogenesis.