Category: A
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Analeptic
A central nervous system (CNS) stimulant medication. A substance that stimulates the central nervous system. A drug used to make someone regain consciousness or to stimulate a patient. Drug that stimulates (e.g., caffeine) the central nervous system or strengthens or invigorates the body. A drug that restores consciousness to a patient in a coma or…
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Anaesthetic
A substance that decreases partially or totally nerve the sense of pain. A substance that causes localised or general loss of sensation. A substance given to someone to remove feeling, so that he or she can undergo an operation without pain. The term used to refer to the collective group of drugs that induce anesthesia,…
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Anaesthesia
Condition of having sensation temporarily suppressed. Loss of feeling or sensation. Although the term is used for loss of tactile sensibility, or of any of the other senses, it is applied especially to loss of the sensation of pain, as it is induced to permit performance of surgery or other painful procedures. A state, deliberately…
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Anaemia
A blood disorder in which the blood is deficient in red blood cells and in haemoglobin. A reduction below normal in the number of erythrocytes per cu. mm., in the quantity of haemoglobin, or in the volume of packed red cells per 100 ml. of blood which occurs when the equilibrium between blood loss (through…
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Amyotrophy
Progressive wasting of muscle tissues. adj. amyotrophic. Atrophy or wasting of the muscles. Amyotrophy is a common symptom of motor neuron diseases, such as ALS, but it is also seen in many other conditions, including diabetes, syphilis, and cancer. A progressive loss of muscle bulk associated with weakness of these muscles. It is caused by…
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Amyloid beta (Ab or Abeta)
A peptide of 39–43 amino acids that appear to be the main constituent of amyloid plaques in the brains of Alzheimer’s disease patients.
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Amoebicidal
Lethal to amoeba. Destructive to amoebas. An agent that kills amoebas. A substance that destroys amoebas.
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Amoebiasis
State of being infected by amoeba such as Entamoeba histolytica. An infection caused by amoebae which can result in, amoebic dysentery in the large intestine (intestinal amoebiasis) and sometimes affects the lungs (pulmonary amoebiasis). A protozoan infection prevalent in subtropical and tropical regions, caused by Entamoeba histolytica.
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Amidolytic
Cleavage of the amide structure.
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Amenorrhea
The condition when a woman fails to have menstrual periods. Absence or abnormal cessation of menses. The absence of menstruation. Abnormal cessation or absence of the menses. An abnormal suppression or nonoccurrence of menstruation. Absence of menses (periods). Lack of menses (the flow of blood that occurs during menstruation). The absence or abnormal stoppage of…