substances
Forms of matter
Substances are types of matter with distinct properties—solid, liquid, or gas.
Chemistry uses the term precisely: a pure substance has uniform composition throughout.
In everyday speech, substances often implies drugs or chemicals: substance abuse, controlled substances, banned substances.
Something with substance has depth or significance: a speech lacking substance, a person of substance.
Firm matter state
- liquidFree-flowing substance
- gasFormless, expanding substance
- plasmaElectrified matter state
- viscosityFluid's flow resistance
density · soluble · permeable · malleable · crystalline · amorphous · particulate · granular
Manufactured medicinal compound
- narcoticAddictive sedative drug
- opioidMorphine-class analgesic
- stimulantAlertness-boosting drug
- sedativeDrug promoting calm
hallucinogen · psychoactive · analgesic · antidepressant · prescription · controlled · recreational · addiction
Combined into one
- moleculeBonded atomic group
- reagentSubstance prompting chemical change
- solventDissolving liquid or financially stable
- catalystAgent enabling change
reaction · synthesis · acid · base · polymer · organic · inorganic · covalent
Simplest atomic element
- oxygenElement eight, colorless gas
- carbonSixth element, atomic symbol C
- nitrogenElement seven, colorless gas
- heliumLightest noble gas
iron · gold · silver · copper · mercury · sulfur · phosphorus · chlorine
Tree-derived building material
- metalHard conductive solid
- plasticCapable of being molded
- glassTransparent solid from sand
- ceramicFired clay material
concrete · rubber · leather · textile · fabric · resin · composite · fiber
Unmixed, without impurities
- unadulteratedCompletely unmixed, genuine
- refinedPurified or cultured
- distilledPurified by vaporization
- filteredScreened to remove contaminants
uncontaminated · sterile · concentrated · diluted · adulterated · contaminated · impurity · trace
solid
Firm matter state
viscosity · density · soluble · permeable · malleable · crystalline · amorphous · particulate · granular · powdery
pharmaceutical
Manufactured medicinal compound
sedative · hallucinogen · psychoactive · analgesic · antidepressant · prescription · controlled · recreational · addiction · overdose
compound
Combined into one
- moleculeBonded atomic group
- reagentSubstance prompting chemical change
- solventDissolving liquid or financially stable
catalyst · reaction · synthesis · acid · base · polymer · organic · inorganic · covalent · ionic
hydrogen
Simplest atomic element
- oxygenElement eight, colorless gas
- carbonSixth element, atomic symbol C
- nitrogenElement seven, colorless gas
helium · iron · gold · silver · copper · mercury · sulfur · phosphorus · chlorine · silicon
wood
Tree-derived building material
ceramic · concrete · rubber · leather · textile · fabric · resin · composite · fiber · silk
pure
Unmixed, without impurities
- unadulteratedCompletely unmixed, genuine
- refinedPurified or cultured
- distilledPurified by vaporization
filtered · uncontaminated · sterile · concentrated · diluted · adulterated · contaminated · impurity · trace · residue
- chemistryatom, atoms, organic chemistry, molecule, chemistry
- entitiesentity, being, object, thing, item
- existenceexistence, being, lives, reality, life
- categoriestypes, category, kinds, class, classes
- componentsparts, part, pieces, piece, elements
- legalizationmarijuana legalization, cannabis legalization, decriminalization, drug decriminalization, legislative reform
substancesaccidents
Unintended harmful occurrences
attributes · properties · qualities · modes · appearances
- substance abuseHarmful habitual intoxicant use
- controlled substanceLegally regulated intoxicant or medication
- banned substancesMaterials forbidden by law
- toxic substancesMaterials harmful to life
- volatile substancesEasily evaporating chemical materials
- illegal substancesForbidden drugs or materials