Ordinair

Ordinair is a term that appears in speculative writing and world-building as a neologism related to air or atmospheric resources. It does not have a single, widely accepted definition and is not tied to an established real-world technology or organization.

Origin and usage vary. In many cases, ordinair is used to contrast ordinary ambient air with altered or artificial atmospheres, or to serve as a provisional product name or concept in fictional settings. The coinage often blends the words ordinary and air, and in some instances may reflect a French-sounding influence.

In fiction and design discussions, ordinair is typically not a specific mechanism but a placeholder for air-based systems, environmental parameters, or life-support concepts. It may describe a baseline air quality, a generic air-supply subsystem, or a theoretical propulsion method that relies on standard atmospheric air rather than exotic gases.

Because of its varied usage, references to ordinair should be interpreted by context. It is treated as a stylistic or world-building device rather than a defined scientific term.

See also: air; atmosphere; ventilation; propulsion; world-building terms.