In order to support the goal of comprehensive detection of life with appropriate conceptual tools we should have a clear definition of life. However, it is known that the definition of life is far from satisfactory and it is doubtful whether a definition of life is possible or needed. In this paper, I suggest that it is possible to approach life from a biosemiotic perspective as a meaning-making process, i.e., a process that yields the system's specific response to an indeterminate signal.
The official journal of the International Association for Semiotic Studies, founded in 1969 as one of the first scholarly journals in the field, Semiotica features articles reporting results of research in all branches of semiotic studies, in-depth reviews of selected current literature in the field, and occasional guest editorials and reports. The journal also publishes occasional Special Issues devoted to topics of particular interest.