Types of Pipes. Pipes come in several types and sizes. They can be divided into three main categories: metallic pipes, cement pipes and plastic pipes. Metallic pipes include steel pipes, galvanised iron pipes and cast iron pipes. Cement pipes include concrete cement pipes and asbestos cement pipes.
error of omissionnoun [ C ] uk â us â. âº a mistake that consists of not doing something you should have done, or not including something such as an amount or fact that should be included: Errors of omission are likely to be more common than errors of commission.
Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff. A type of humanerror where a person leaves out an important action resulting in a function failing. Compare error of commission. ERROR OF OMISSION: Joe made an error of ommission and forgot to stop to press thgenbutton that stopped the conveyor belt delivering boxes to be packed.. How to be a Submissive Wife.