Категория noun.substance

any substance characterized by its great flammabilitypyrogen;
any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acidsaldehyde;
an acid formed as an intermediate product of the metabolism of tyrosine and phenylalaninealcapton; alkapton; homogentisic acid;
any of various compounds that are added to gasoline to reduce engine knockingantiknock;
pollen of the ragweed plant is a common allergenragweed pollen;
(nontechnical usage) a tiny piece of anythingatom; corpuscle; molecule; mote; particle; speck;
any nuclear or chemical or biological material that can be used as a weapon of mass destructionammunition;
a small loosely aggregated mass of flocculent material suspended in or precipitated from a liquidfloc; floccule;
an abbreviation for `hazardous material' used on warning signshazmat;
(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)mixture;
a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when moltenalloy; metal;
any of several neurotoxins that are produced by the anaerobic bacterium Clostridium botulinum; causes muscle paralysisbotulinum toxin;
a neurotoxin (trade name Botox) that is used clinically in small quantities to treat strabismus and facial spasms and other neurological disorders characterized by abnormal muscle contractions; is also used by cosmetic surgeons to smooth frown lines temporarilybotox; botulinum toxin a;
a mixture with properties between those of a solution and fine suspensioncolloid;
a mixture of ingredientscomposition;
(of colloids) a substance in the colloidal statedispersed particles; dispersed phase;
(of colloids) a substance in which another is colloidally disperseddispersing medium; dispersing phase; dispersion medium;
a mixture whose components can be separated by mechanical meansmechanical mixture;
a mixture of substances having a minimum melting pointeutectic;
a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solutionsolution;