“Encyclopedic Dictionary of General and Applied Entomology” has been written keeping in view the fact that different terminology employed in teaching and researchers on different aspects of studies on insects and their management is found in scattered sources. Moreover, in the last 3-4 decades, many developments have been made especially in economic entomology. An attempt has been made to present the terminology in entomology and pest management in the most authentic and comprehensive way keeping the requirements of teachers and researchers in mind. Most of the terms have been given in encyclopedic form. Terms relating to the close relatives of insects such as mites and ticks and some other organisms which are pests of crops have also been included. Appendices giving useful information regarding various prefixes and suffixes used in formation of terms; and terms based on colour and shapes etc. have been included at the end for better understanding of the subject. Some useful literature for gaining more information about different terms is also listed.