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1. Dictionary

   substance

   /ˈsʌbst(ə)ns/

   noun

   • 1. a particular kind of matter with uniform properties: "a steel tube coated with a waxy substance" Similar materialmatterstuffmediumfabric
   • ▪ an intoxicating, stimulating, or narcotic chemical or drug, especially an illegal one: "he was suspended for using a banned substance"
   • 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 soliditybodycorporealityrealityactualitymaterialityconcretenesstangibilitydensitymassweightshapestructure
   • ▪ the most important or essential part of something; the real or essential meaning: "the substance of the Maastricht Treaty" Similar meaningfulnesssignificanceimportanceimportmomentpowersoundnessvaliditycontentpithmarrowcorebasisfoundationinformal:clout
   • ▪ the subject matter of a text, speech, or work of art, especially as contrasted with the form or style in which it is presented: "the substance of his book was the history of allegorical love literature" Similar contentsubject mattersubjectthemetopictextmessagematerialburdentenoressencequintessenceheartmeatgistdriftsenseimport
   • 3. the quality of being important, valid, or significant: "he had yet to accomplish anything of substance"
   • ▪ the quality of having a solid basis in reality or fact: "the claim has no substance"
   • ▪ the quality of being dependable or stable: "some were inclined to knock her for her lack of substance"
   • ▪ wealth and possessions: "a woman of substance" Similar wealthfortunerichesaffluenceprosperitymoneycapitalmeansresourcesassetspropertyestatespossessions
   • 4. the essential nature underlying phenomena, which is subject to changes and accidents.

   Word Origin Middle English (denoting the essential nature of something): from Old French, from Latin substantia ‘being, essence’, from substant- ‘standing firm’, from the verb substare.

   Scrabble Points: 13

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2. www.examples.com › chemistry › compoundsChemical Compounds - Definition, Examples, Types

   www.examples.com › chemistry › compounds

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   5 days ago · A chemical compound is a substance that is formed by the chemical combination of two or more elements in a fixed ratio. These elements are bound together by chemical bonds, which involve the sharing or transfer of electrons between atoms.

3. www.britannica.com › science › waterWater | Definition, Chemical Formula, Structure, Molecule, &...

   www.britannica.com › science › water

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   3 days ago · Water, substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful of compounds and has the important ability to dissolve many other substances, which was essential to the development of life.

4. www.britannica.com › science › gas-state-of-matterGas | Definition, State of Matter, Properties, Structure, & Facts

   www.britannica.com › science › gas-state-of-matter

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   5 days ago · Gas, one of the three fundamental states of matter, with distinctly different properties from the liquid and solid states. The remarkable feature of gases is that they appear to have no structure at all. They have neither a definite size nor shape, whereas ordinary solids have both a definite size.

5. www.britannica.com › science › proteinProtein | Definition, Structure, & Classification | Britannica

   www.britannica.com › science › protein

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   4 days ago · A protein is a naturally occurring, extremely complex substance that consists of amino acid residues joined by peptide bonds. Proteins are present in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.

6. Videos

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7. en.wikipedia.org › wiki › StimulantStimulant - Wikipedia

   en.wikipedia.org › wiki › Stimulant

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   3 days ago · Definition. A stimulant is an overarching term that covers many drugs including those that increase the activity of the central nervous system and the body, [1] drugs that are pleasurable and invigorating, or drugs that have sympathomimetic effects. [2] .

8. en.wikipedia.org › wiki › FentanylFentanyl - Wikipedia

   en.wikipedia.org › wiki › Fentanyl

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   3 days ago · Fentanyl - Wikipedia. Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic. It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; [8] its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries.

9. www.verywellmind.com › tips-for-staying-clean-and-sober-67900Sobriety Strategies: 13 Tips for Staying Sober - Verywell Mind

   www.verywellmind.com › tips-for-staying-clean-and-sober-67900

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   5 days ago · Engaging in compulsive, self-defeating behaviors. Seeking out situations involving people who use alcohol and drugs. Thinking less rationally and behaving less responsibly.