Definition that contains roca
- return a reciprocal group action
- throw the maximum movement available to a pivoted or reciprocating piece by a cam
- gas a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
- itself The neuter reciprocal pronoun of It.
- oil a dark oil consisting mainly of hydrocarbons
- exchange reciprocal transfer of equivalent sums of money (especially the currencies of different countries)
- alcohol any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation
- stroke the maximum movement available to a pivoted or reciprocating piece by a cam
- cracking the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)
- petrol a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines