The term "lambda graviton" suggests the concept of a hypothetical particle associated with gravity, incorporating the term "lambda" as part of its name. In physics, the lambda symbol (λ) often denotes wavelength or a parameter in various equations.

However, it's important to clarify that as of my last update, gravitons themselves are theoretical particles associated with the gravitational force, proposed within the framework of quantum field theory. Gravitons are postulated to mediate the force of gravity, similar to how photons mediate electromagnetic force.

The addition of "lambda" to this hypothetical particle's name could imply a specific context or theory within theoretical physics. For instance, lambda might represent a particular property or characteristic of these gravitons within a given theoretical framework.

In the absence of a more specific context, a "lambda graviton" could be interpreted as a speculative term within theoretical physics, possibly referring to a variation or aspect of graviton behavior within a particular model or theory.