tinder 
1: a very flammable substance adaptable for use as kindling
2: something that serves to incite or inflame

flint
1: a massive hard quartz that produces a spark when struck by steel
2: an implement of flint used in prehistoric cultures
3 a: a piece of flint b: a material used for producing a spark; esp: an alloy (as of iron and cerium) used in lighters
4: something resembling flint in hardness -- flint.like adj

carburetor
an apparatus for supplying an internal combustion engine with an explosive mixture of vaporized fuel and air

ignition
1: the act or action of igniting: as a: the starting of a fire b: the heating of a plasma to a temperature high enough to sustain nuclear fusion
2: the process or means (as an electric spark) of igniting a fuel mixture

chemistry
1: a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo
2 a: the composition and chemical properties of a substance <the ~ of iron> b: chemical processes and phenomena (as of an organism) <blood ~>
3: a strong mutual attraction, attachment, or sympathy <they have a special ~>

reaction
1 a: the act or process or an instance of reacting b: resistance or opposition to a force, influence, or movement; esp: tendency toward a former and usu. outmoded political or social order or policy
2: a response to some treatment, situation, or stimulus <her stunned ~ to the news>; also: such a response expressed verbally <critical ~ to the play>
3: bodily response to or activity aroused by a stimulus: a: an action induced by vital resistance to another action; esp: the response of tissues to a foreign substance (as an antigen or infective agent) b: depression or exhaustion due to excessive exertion or stimulation c: heightened activity and overaction succeeding depression or shock d: a mental or emotional disorder forming an individual's response to his or her life situation
4: the force that a body subjected to the action of a force from another body exerts in the opposite direction
5: chemical transformation or change: the interaction of chemical entities

reactive
1: of, relating to, or marked by reaction or reactance
2 a: readily responsive to a stimulus b: occurring as a result of stress or emotional upset

hydrocarbon
an organic compound (as acetylene or butane) containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens

coefficient
an organic compound (as acetylene or butane) containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens

cellulose
a polysaccharide of glucose units that constitutes the chief part of the cell walls of plants, occurs naturally in such fibrous products as cotton and kapok, and is the raw material of many manufactured goods (as paper, rayon, and cellophane)

rust
1 a: the reddish brittle coating formed on iron esp. when chemically attacked by moist air and composed essentially of hydrated ferric oxide b: a comparable coating produced on a metal other than iron by corrosion c: something resembling rust: accretion
2: corrosive or injurious influence or effect
3: any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by usu. reddish brown pustular lesions; also: a fungus causing this

nitroglycerine
a heavy oily explosive poisonous liquid used chiefly in making dynamites and in medicine as a vasodilator

pyrotechnics
1 sing or pl in constr: the art of making or the manufacture and use of fireworks
2 a: a display of fireworks b: a spectacular display (as of extreme virtuosity)