The present lexicon explains the meaning and significance of ritualistic terms frequently occuring in the Srautassutra, together with a short description of the sacrificial rites connected or therewith. It is an outcome of the engagement of the author with the Saruta ritual for a very long time. He has not only a first hand knowledge of the text but also a practical acquaintance with the subject acquired through participating in such sacrifices. Every term has been traced back to its original source for which exact references have been provided. A proper understanding of the technical terminology of the vedic ritual is a pre-condition for understanding ritualistic texts connected with the Vedas and also the sacrificial performance mentioned therein. No proper understanding of a Sarutasutra is possible without knowing the basic concepts and the details of the ritualistic terms. Sketches and photographs of vedic implements and performances are an added advantage of this lexicon, which will help the reader immensely in understanding the related terms. The dictionary is the first of its kind in view of its vast coverage, authenticity and reliability. We are sure that it will prove to be an indispensable asset for every scholar who wants to familiarize himself with the Vedic ritual and the philosophy behind it.