SpecA specification language. It expresses black box interface specifications for large distributed systems with real-time constraints. It incorporates conceptual models, inheritance and the event model. It is a descendant of MSG.84. ["An Introduction to the Specification Language Spec", V. Berzins et al, IEEE Software 7(2):74-84 (Mar 1990)].
Speakeasy ♦ speaker ♦ SPEC ♦ Spec ♦ spec ♦ SPECbase_fp92 ♦ SPECbase_int92
Try this search on Wikipedia, Wiktionary, Google, OneLook.