Marketing is about communicating the value of a product, service or brand to customers or consumers for the purpose of promoting or selling that product, service, or brand.he oldest â and perhaps simplest and most natural form of marketing â is 'word of mouth' (WOM) marketing, in which consumers convey their experiences of a product, service or brand in their day-to-day communications with others.
Pre-existing conditions are medical conditions that existed before an insurance policy was taken out. Insurers usually exclude claims arising from pre-existing conditions, because insurance policies are intended to cover unexpected occurrences. An exclusion for pre-existing conditions is common in health-related insurance policies, such as private medical insurance and payment protection insurance (PPI). But the exclusion is also used in other policies - for example, pet insurance and travel insurance.
preÂ·curÂ·sor. That which precedes another or from which another is derived, applied especially to a physiologically inactive substance that is converted to an active enzyme, vitamin, hormone, etc., or to a chemical substance that is built into a larger structure in the course of synthesizing the latter.preÂ·curÂ·sor/ (preÂ´kur-ser) something that precedes. In biological processes, a substance from which another, usually more active or mature, substance is formed. In clinical medicine, a sign or symptom that heralds another.precurÂ´sory.