incidental. Contingent upon or pertaining to something that is more important; that which is necessary, appertaining to, or depending upon another known as the principal.nder Workers' Compensation statutes, a risk is deemed incidental to employment when it is related to whatever a worker must do in order to fulfill the employment contract, but is not the primary function that the worker was hired to do.
A cultivator is both a general term for any tool that is used to prepare soil for planting, and the name of four specific tools: a piece of machinery attached to a tractor, a small engine-propelled machine, a hand-action tool, and a traditional hand-tool.
activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription. 1  substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.