Addiction
Addiction: An uncontrollable craving, seeking, and use of a substance such as alcohol or another drug. Dependence is such an issue with addiction that stopping is very difficult and causes severe physical and mental reactions.
Read Also:
- Addison anemia
Addison anemia: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the substance in the stomach that allows the body to absorb vitamin B12. This substance is called intrinsic factor (IF). Addison anemia, better known today as pernicious anemia (PA), is characterized by the presence in […]
- Addison disease
Long-term underfunction of the outer portion of the adrenal gland. In medical terms, chronic insufficiency of the adrenal cortex. This may be due to a number of different insults to the adrenal including physical trauma, hemorrhage, and tuberculosis of the adrenal, and destruction of the cells in the pituitary gland that secrete ACTH (adrenocorticotropic hormone) […]
- Addisonian anemia
Addisonian anemia: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the substance in the stomach that allows the body to absorb vitamin B12. This substance is called intrinsic factor (IF). Addisonian anemia, also called pernicious anemia (PA), is characterized by the presence in the blood […]
- Additive genetic effects
Additive genetic effects: A mechanism of quantitative inheritance such that the combined effects of genetic alleles at two or more gene loci are equal to the sum of their individual effects.
- Adducted thumbs with mental retardation
Adducted thumbs with mental retardation: A syndrome with the following characteristic features: neurologically: mental retardation and aphasia (lack of speech) limbs: adducted (clasped) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb, shuffling gait, and leg spasticity growth: small body size skeleton: lumbar lordosis (sway back) The syndrome is inherited as an X-linked […]