Mindblown: a blog about philosophy.
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Iproniazid
An MAO antidepressant by elevating neurotransmitter levels by inhibiting their metabolism. A drug administered by mouth to treat all types of depression. Side-effects may include constipation, dizziness, difficulty in urination, insomnia, headaches, and impotence.
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Ipecac
The dried root of Uragoga ipecacuanha, a shrub found chiefly in Brazil that can cause vomiting. A syrup used to induce vomiting. Drug used to induce vomiting in some types of poisoning and drug overdose. Adverse effects include gastrointestinal irritation and prolonged vomiting. A substance that when ingested induces vomiting; it is used to remove…
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Ionizing radiation
A form of radiation capable of releasing electrons from atoms. Ionizing irradiation of bacterial cells has a destructive effect upon DNA and other components, which results in the death of the cells without appreciable temperature rise; the process is therefore termed ‘cold sterilization’. Radiant electromagnetic energy or high-energy particles that ionize atoms in a substance…
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Ionize
To separate into ions.
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Ionization chamber
A chamber for detecting the ionization of an enclosed gas. The is used for determining the intensity of ionization radiation. A small cavity filled with air which has the capability of collecting the ionic charge which is liberated during irradiation. A measure of this charge combined with knowledge of the mass of air in the…
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Ionization
Dissociation into ions. The removal of an electron from a neutral atom, resulting in a positively charged ion (the ionized atom) and a free, negatively charged electron. Ionization at the cellular level can lead to cell death or mutation. The separation of an atom or molecule into positive and negative ions. The phenomenon through which…
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Involutional psychotic reaction
Involutional melancholia.
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Involution
An inward curvature. The return of an organ to its usual size, e.g. the shrinking of the uterus after childbirth. A period of decline of organs which sets in after middle age. Decrease in the size of an organ, as in the return of the uterus to its normal size after childbirth. V. involute. The…
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Involuntary smoking
With reference to tobacco smoke, passive smoking from “side stream” or second-hand smoke that is inhaled as a result of being in close proximity to one who is smoking. Inhaling air containing tobacco smoke produced by other persons who are smoking. It is also called passive smoking.
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Involuntary muscle
Muscles that make up the blood vessels and other organs such as the stomach. A muscle supplied by the autonomic nervous system, and therefore not under voluntary control, e.g. the muscle which actiyates a vital organ such as the heart. Muscle that is not under conscious control, such as the muscle of the gut, stomach,…
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