TELOS1. The LeLisp Version 16 Object System. Also used in EuLisp. The object-oriented core of EuLisp. Incorporates ideas from CLOS, ObjVLisp and OakLisp. Total merging of types with classes and message-passing with normal function application. 2. A Pascal-based AI language. ["Design Rationale for TELOS, a Pascal-based AI Language", Travis et al, SIGPLAN Notices 12(8) (Aug 1977)].