The term "Martini glass sign" is not widely recognized in established medical, scientific, or cultural literature, and no reliable encyclopedic sources confirm its standardized usage or definition.
Accurate information is not confirmed regarding the term "Martini glass sign" as a formal diagnostic indicator, symbolic representation, or technical descriptor in medicine, art, or other disciplines. It may be used informally or regionally in specific contexts, possibly as a metaphor or visual analogy.
Possible interpretations could relate to visual patterns resembling the shape of a martini glass—an inverted cone on a stem—such as in radiological imaging, architectural design, or graphical data representation. However, without authoritative references, such uses remain speculative.
Due to the lack of verifiable sources and standardized definition, the term cannot be described with encyclopedic accuracy.