matter, substance - that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"

chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

vanillin - a crystalline compound found in vanilla beans and some balsam resins; used in perfumes and flavorings

acceptor - (chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated

adduct - a compound formed by an addition reaction

antiknock - any of various compounds that are added to gasoline to reduce engine knocking

acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

arsenide - a compound of arsenic with a more positive element

hydrogen cyanide - a highly poisonous gas or volatile liquid that smells like bitter almonds; becomes a gas at around 90 degree fahrenheit and is most dangerous when inhaled; the anhydride of hydrocyanic acid; used in manufacturing

anionic compound - a compound characterized by an active anion

alkali, base - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"

binary compound - chemical compound composed of only two elements

taurine - a colorless crystalline substance obtained from the bile of mammals

chromogen - a compound that can be converted to a pigment

manganese tetroxide - an oxide of manganese found naturally as hausmannite

monomer - a simple compound whose molecules can join together to form polymers

ozonide - any of a class of unstable chemical compounds resulting from the addition of ozone to a double bond in an unsaturated compound

organic compound - any compound of carbon and another element or a radical

ammine - a complex inorganic compound that contains ammonia molecules

anhydride - a compound formed from one or more other compounds in a reaction resulting in removal of water

azide - a chemical compound containing the azido group combined with an element or radical

bitter principle - any one of several hundred compounds having a bitter taste; not admitting of chemical classification

buffer - an ionic compound that resists changes in its pH

calcium-cyanamide, cyanamide - a compound used as a fertilizer and as a source of nitrogen compounds

carbonyl - a compound containing metal combined with carbon monoxide

carbon disulfide - a toxic colorless flammable liquid (CS2); used in the manufacture of rayon and cellophane and carbon tetrachloride and as a solvent for rubber

cofactor - a substance (as a coenzyme) that must join with another to produce a given result

cementite, iron carbide - the iron carbide constituent of steel and cast iron; very hard and brittle

chloropicrin, nitrochloroform - a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas

coordination compound, complex - a compound described in terms of the central atom to which other atoms are bound or coordinated

allomorph - any of several different crystalline forms of the same chemical compound; "calcium carbonate occurs in the allomorphs calcite and aragonite"

corrosive - a substance having the tendency to cause corrosion (such a strong acids or alkali)

aluminate - a compound of alumina and a metallic oxide

defoliant - a chemical that is sprayed on plants and causes their leaves to fall off

depilatory - a chemical (usually a sulfide) used to remove hair or wool or bristles from hides

dimer - a compound whose molecules are composed of two identical monomers

fixing agent, fixer - a chemical compound that sets or fixes something (as a dye or a photographic image)

formulation, preparation - a substance prepared according to a formula

enantiomer, enantiomorph - either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical

goitrogen - any substance (such as thiouracil) that induces the formation of a goiter