S: (n) compound, chemical compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)
S: (n) vanillin (a crystalline compound found in vanilla beans and some balsam resins; used in perfumes and flavorings)
S: (n) acceptor ((chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated)
S: (n) adduct (a compound formed by an addition reaction)
S: (n) antiknock (any of various compounds that are added to gasoline to reduce engine knocking)
S: (n) 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)
S: (n) arsenide (a compound of arsenic with a more positive element)
S: (n) 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)
S: (n) base, alkali (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"
S: (n) carbonyl (a compound containing metal combined with carbon monoxide)
S: (n) 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)
S: (n) cofactor (a substance (as a coenzyme) that must join with another to produce a given result)
S: (n) cementite, iron carbide (a chemical compound that is a constituent of steel and cast iron; very hard and brittle)
S: (n) chloropicrin, nitrochloroform (a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas)
S: (n) allomorph (any of several different crystalline forms of the same chemical compound) "calcium carbonate occurs in the allomorphs calcite and aragonite"
S: (n) corrosive (a substance having the tendency to cause corrosion (such a strong acids or alkali))
S: (n) menthol (a crystalline compound that has the cool and minty taste and odor that occurs naturally in peppermint oil; used as a flavoring and in medicine to relieve itching, pain, and nasal congestion)
S: (n) nitrogen mustard (a toxic compound resembling mustard gas in structure; important in cancer treatment)
S: (n) nitride (a compound containing nitrogen and a more electropositive element (such as phosphorus or a metal))
S: (n) oxide (any compound of oxygen with another element or a radical)
S: (n) polymer (a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers)
S: (n) preservative (a chemical compound that is added to protect against decay or decomposition)
S: (n) quinone, benzoquinone (any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes)
S: (n) salt (a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal))
S: (n) caustic (any chemical substance that burns or destroys living tissue)
S: (n) nitrate (any compound containing the nitrate group (such as a salt or ester of nitric acid))
S: (n) tetrachloride (any compound that contains four chlorine atoms per molecule)
S: (n) triazine (any of three isomeric compounds having three carbon and three nitrogen atoms in a six-membered ring)
S: (n) yellowcake, U308 (an impure mixture of uranium oxides obtained during the processing of uranium ore)
S: (n) enamel (a colored glassy compound (opaque or partially opaque) that is fused to the surface of metal or glass or pottery for decoration or protection)
S: (n) pregnanediol (a compound found in women's urine during certain phases of the menstrual cycle and in the urine of pregnant women)
S: (n) repellent, repellant (the power to repel) "she knew many repellents to his advances"
Adjective
S: (adj) rebarbative, repellent, repellant (serving or tending to repel) "he became rebarbative and prickly and spiteful"; "I find his obsequiousness repellent"