Present participle of weld, noun_ The action or process of welding, fastening two pieces of metal together by softening with heat and applying pressure, The process by which substances, such as metal, are united or consolidated by hammering or compression with or without previous softening by heat

Of such close construction as to be impermeable, Leaving little empty space through compression; compact, Fitting close or too close to the skin; snug, adverb_ Firmly; securely, Soundly, nugly or with constriction, transitive verb_ obsolete To tighten

A diesel engine, an internal-combustion engine that burns heavy oil, A fuel derived from petroleum (or other oils) but heavier than gasoline/petrol Used to power diesel engines which burn this fuel using the heat produced when air is compressed, verb_ To ignite a substance by using the heat generated by compression, automotive For a spark-ignition internal combustion engine to continue running after the electrical current to the spark plugs has been turned off This occurs when there's enough heat in the combustion chamber to ignite the air/fuel without a spark, the same way heat and pressure cause ignition in a diesel engine, intransitive verb_ To drive a diesel-powered vehicle, To refuel a diesel-powered vehicle Often used with up, To drive a diesel-powered vehicle

The application of continuous force by one body on another that it is touching; compression, The act of pressing, or the condition of being pressed; compression; a squeezing; a crushing, Distress