#aviation

• Aeroplane — A historical, archaic, or literary term used in the early stages of aeronautics to name an aeroplane, an airplane, or a mechanically propelled fixed-wing flight apparatus. This compound word reflects a period of linguistic transition when technical names were not fully stabilized, being used in old maps, early patents, or press articles from the beginning of the 20th century.
• Aerial duster — A specialized apparatus, device, or utility aircraft structurally configured for the aerial scattering of pesticides, insecticides, or fertilizers in the form of powder or fine dust over agricultural crops or forestry massifs. This technical system optimizes plant protection by uniformly dispersing solid chemical substances over large areas in a considerably reduced time.
• Aerial sprayer — A specialized apparatus, complex mechanical installation, or utility aircraft structurally configured for the application, dispersion, and fine spraying of liquid chemical substances (insecticides, fungicides, herbicides, or foliar fertilizers) over agricultural crops or forestry zones. This technical system uses a spray boom with calibrated nozzles mounted under the wings to ensure uniform and rapid coverage of the ground or vegetation.
• Avis — A term borrowed directly from Latin (where it means 'bird'), used in old Romanian, archaic legal texts, or scientific ornithological works to designate a bird or a winged creature. Additionally, this etymological root forms the basis of many modern aviation and aeronautical neologisms (such as 'avion' or 'aviator'), being preserved as a reference element in classical taxonomic classifications.
• Avtolet — An archaic or regional hybrid term, used ephemerally in the first half of the 20th century (influenced by Slavic/Russian terminology), to designate an airplane, aircraft, or self-propelled flying machine. It represents an early linguistic attempt to name aerial vehicles, combining the Greek element 'avto' (self) with the Slavic root 'let' (to fly), quickly eliminated by the French-derived neologism 'avion'.
• AZP — A technical acronym used to designate various structural concepts depending on the field, such as 'Low-Noise Power Supply' in electronics, 'Primary Flight Instrumentation' in aviation, or specific biochemical indicators in medical laboratories.