Vocab

careless mistake; act or speak clumsily.

an internal combustion engine in which heat produced by the compression of air in the cylinder is used to ignite the fuel.

relating to or denoting the central government as distinguished from the separate units constituting a federation.

a person whose job is to extinguish fires.

a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.

existing or occurring at the beginning.

relating to the science of medicine, or to the treatment of illness and injuries.

a machine for making photocopies.

having or showing the capacity to become or develop into something in the future.

an object that is used to project rays of light, especially an apparatus with a system of lenses for projecting slides or film onto a screen.