Definition of terms is usually an annex to a work (book, research paper, pamphlet,etc.) either at the beginning or more likely near the end with a list of acronyms, jargon, credits, etc. This is an important part of Research paper or report is that in which the key or important terms in the study are clearly defined. Types and Functions CONCEPTUAL -Is the universal meaning that is attributed to a word or group of words and which is understood by many people. CONCEPTUAL It is abstract and most general in nature. The usual source of conceptual definition is the DICTIONARY which is the reference book of everyday language. OPERATIONAL DEFINITION -Is the meaning of the concept or term as used in a particular study. Unlike the conceptual definition, it is stated in concrete term in that it allows measurement. The usual practice when using both types of definition is to state first the conceptual followed by the operational. FUNCTIONS FUNCTIONS It establishes the rules and procedures the investigators will use to measure variables It provides unambiguous meaning to terms that otherwise can be interpreted in different ways. EXAMPLES EXAMPLES OPERATIONAL DEFINITION: Reference:Basic Concepts and Methods in Research by Venancio B. ArdalesBest, John W. Research in Education Englewood Cliffs, New Jersey:Prentice Hall, 1970.Chen, Paul C.Y. “Traditional and Modern Medicine in Malaysia” Social Sciencee and Medicine 15A(1981):127-136