#physics adjective

• Aerothermal — Relating to thermal phenomena occurring in the air or under the influence of air currents; concerning heat transformations within gaseous media. In modern technology, it describes advanced systems or heat pumps (air-to-water or air-to-air) that extract the thermal energy naturally stored in the outdoor air to provide building climate control.
• Anisotropic — Exhibiting physical or mechanical properties (such as thermal conductivity, elasticity, expansion, or light refraction) that vary depending on the direction of measurement or propagation through that substance. This structural characteristic is specific to most crystals and composite materials, where the asymmetric arrangement of atoms determines a physical behavior dependent on vector orientation.
• Harmonic — Based on harmony, balanced proportion, and structural concordance of elements within an assembly. In physics and acoustics, it describes a periodic oscillatory phenomenon (harmonic motion) or a sinusoidal component (harmonic frequency) of a complex sound, whose frequency is an integral multiple of the fundamental frequency. In mathematics, it refers to means or progressions established according to specific proportions, and in music, it designates the consonant relationship between simultaneously emitted sounds.
• Astatic — Being in a state of neutral equilibrium, lacking a fixed position of stability, or unaffected by external directive forces such as terrestrial magnetism. In electronics and automatics, it describes a system or regulator that exhibits no steady-state error relative to the reference value, continuing to modify its parameters until the error is completely eliminated.