Secluden

Secluden is a fictional material referenced in science fiction literature, video games, and role-playing settings. It is described as a class of substances capable of creating physically isolated spaces or environments, effectively decoupling matter, energy, and information from surrounding systems. The name is derived from the verb to seclude, emphasizing its core function.

In many depictions, secluden is a transparent, lightweight solid or composite that can be formed into panels, shells, or thin films. It is said to have extremely low thermal conductivity, high dielectric strength, and programmable permeability to waves, allowing selective isolation of certain frequencies. Some variants may exhibit self-healing, shape memory, or adaptive cloaking.

Manufacture: Secluden is typically described as requiring advanced synthesis—often nanostructured composites or quantum-scale processes—accessible only to highly developed civilizations or specialized labs.

Variants: Secluden-Alpha, Secluden-Beta, and Secluden-Delta are common designations, differing in isolation thresholds, mechanical properties, and compatibility with other materials. Applications include secure enclosures, containment for sensitive experiments, energy shielding, and stealth or concealment devices.

In the real world, no material called secluden is known; the term is used primarily within fiction and world-building. It serves as a speculative concept to explore ideas of isolation, shielding, and control over information and energy.