Communication- Meaning and Definition: The word Communication is of Latin origin, derived from the Latin word communicare, which means to share or exchange information, news and views etc. The Oxford Advanced Learner’s Dictionary defines the word communication as the “activity or process of expressing ideas feelings or of giving people information”. In brief, communication can be called an act of transferring an idea or some news from one person to another. While defining communication, Pauley and Riordan write, “Communication is the act of transmitting an idea from one person to another. Communication always requires at least two people the sender of the message and its receiver”. Here sender actually refers to the writer or speaker and information and understanding from one person to another person. It is a way of reaching others with fact ideas, thoughts and value”. American Management Association defines communication as “behavior that results in an exchange of meaning”. According to this definition meaning is central to communication. Thus, communication, in brief, is a process of sharing information. Meaning and Definition of Technical Communication: The word ‘technical’ as defined by the Oxford Advanced Learner’s Dictionary, refers to something “connected with the practical use of machinery, methods etc. in science and industry”. Technical communication, therefore, means the transmission of facts, figures, ideas and all sorts of scientific and technical information from one individual to another. The technical communication may be spoken as well as written. The technocrats may conduct their professional jobs sometimes through oral communication which is performed through speech while sometimes written communication which depends on the written words becomes necessary. Hence, the technologist has to be proficient in both types technical communication-oral and written. All communication, general or technical, involves two persons in the process in which one a speaker or a writer and the other is a listener or a reader. At the outset, the speaker or a writer encodes a concept which he wants to communicate. At the second stage, that message or concept is decoded by the listener or the reader and converted into meaning. At this stage of decoding, the receiver analyses and interprets the meaning of the message so that any confusion or misunderstanding can be avoided. However, the technical communication can be internal or external. Importance of Technical Communication: Technical communication gained momentum with development of international trade and technology. In the seventeenth century English trade at international level progressed tremendously which resulted in increased international communication. The foundation of Royal Society in 1660 promoted the scientific researches and experimentations. The scientists need to prepare their reports and technically written articles. These articles were written in plain English and also in lucid and accurate style. The close of eighteenth century is marked by the outbreak of industrial revolution. The early nineteenth century witnessed an outgrowth of industries which also helped in bringing about a sort of revolution in the field of technical writing. Technical communication both oral as well as written came to the fore on account of the prevalent social condition in the nineteenth century.