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- Dictionarysubstance/ˈsʌbst(ə)ns/
noun
- 1. a particular kind of matter with uniform properties: "a steel tube coated with a waxy substance" Similar
- 2. the real physical matter of which a person or thing consists and which has a tangible, solid presence: "proteins compose much of the actual substance of the body" Similar
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12 hours ago · A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that when polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. These properties are all associated with having electrons available at the Fermi level, as against nonmetallic materials which do not. [1] : .
12 hours ago · Particulates or atmospheric particulate matter (see below for other names) are microscopic particles of solid or liquid matter suspended in the air. The term aerosol commonly refers to the particulate/air mixture, as opposed to the particulate matter alone. [1]
12 hours ago · India, officially the Republic of India ( ISO: Bhārat Gaṇarājya ), [21] is a country in South Asia. It is the seventh-largest country by area; the most populous country as of June 2023; [22] [23] and from the time of its independence in 1947, the world's most populous democracy.
12 hours ago · Alcoholics Anonymous (AA) is a global peer-led mutual aid fellowship begun in the United States dedicated to abstinence-based recovery from alcoholism through its spiritually inclined twelve-step program.
12 hours ago · Meditation is a practice in which an individual uses a technique – such as mindfulness, or focusing the mind on a particular object, thought, or activity – to train attention and awareness, and achieve a mentally clear and emotionally calm and stable state.
12 hours ago · Alcohol is the leading cause of direct deaths from drug overdoses. Symptoms of ethanol overdose may include nausea, vomiting, CNS depression, coma, acute respiratory failure, or death. Levels of even less than 0.1% can cause intoxication, with unconsciousness often occurring at 0.3–0.4%. [268]
12 hours ago · Epileptic spike and wave discharges monitored EEG. [ edit on Wikidata] Electroencephalography ( EEG) [1] is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. [2]
