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The best approach when tackling any new topic is to begin with a study of relevant terminology within the context of the defined subject matter. Without a firm grasp of the common language, key concepts often appear disconnected, and it can be difficult to achieve full comprehension or communicate effectively within the marketplace. With emerging technologies such as UV Light Emitting Diodes (LEDs), an additional challenge in learning the jargon lies in the fact that the language has not yet been properly established or defined with respect to the UV curing industry, let alone consolidated for easy reference. This increases the chances that many of us are not using the same words or are using them incorrectly. Furthermore, if the words have multiple meanings or if the definitions of the words are not apparent, their usage can lead to confusion or misunderstandings between suppliers and customers as well as within companies. How many conversations have each of us had regarding UV LEDs where we either assumed the other party understood what we were saying or we pretended to understand what they were communicating to us simply because of insufficient knowledge of the words being used in the conversation? In order to document the language of UV LEDs, educate the UV curing industry, and separate the truth from current marketing claims, this article will outline key terminology within a larger discussion of the integration of LED chips into UV curing systems.