#wave

• Scorching heat — A regional or archaic phonetic variant of 'arșiță' (scorching heat), used in certain Romanian dialects to describe the suffocating heat, oppressive glow, or hot air of torrid summer days. This climatic phenomenon affects soil moisture and causes the rapid wilting of vegetation and field crops.
• Scorching heat — A regional phonetic variant for 'arșiță' (scorching heat) or a specific phenomenon of vegetation and crop scorching caused by excessive heat and prolonged lack of precipitation. In popular language, the term describes the state of extreme dryness of the air and soil during torrid summer days, having a destructive impact on cultivated plants.
• Scorching heat — Great, suffocating, and scorching heat, characteristic of summer days with extremely high temperatures; canopy heat or oppressive sultriness caused by the direct and intense action of the sun's rays. In an extended sense, the term describes the state of atmospheric dryness and parching that affects the soil and agricultural crops, while in a figurative sense, it can express a strong fever of the body or a state of ardor, intense passion, or consuming spiritual suffering.
• Arteriograph — A high-precision medical device used in radiology and cardiology to graphically record arterial pulsations or to visualize and photograph the lumen of arteries using X-rays, following the injection of a contrast medium. Additionally, in modern medicine, the term can also refer to non-invasive devices that measure arterial stiffness and pulse wave velocity to assess a patient's global cardiovascular risk.
• Arteriopiezography — A clinical medical investigation method, rarely used today or replaced by digital technologies, consisting of the simultaneous or successive graphic recording of arterial pressure and pulse waves using a device called a piezograph (a sensor sensitive to mechanical pressure). This technique provided valuable data regarding the elastic properties of arterial walls, left ventricular ejection dynamics, and the central hemodynamic profile of patients with hypertensive pathologies.
• Arteriopiezogram — A graphic representation obtained from an arteriopiezography, recording the variations in mechanical pressure and pulse waves produced by blood flow within an artery during the cardiac cycle. This curved diagram allows a detailed analysis of vascular dynamics, arterial wall elasticity, and the amplitude of systolic and diastolic waves, offering valuable diagnostic clues in assessing aortic stiffness or other obstructive macroangiopathies.
• Astrospectroscopy — A fundamental field of astrophysics dealing with the qualitative and quantitative study of the electromagnetic radiation spectra emitted or absorbed by celestial bodies. This discipline analyzes spectral lines decomposed via diffraction gratings or prisms to deduce the chemical composition, effective temperature, surface gravity, radial velocity, and rotational motions of cosmic objects in the universe.
• Audibility — The quality of being audible; the property of a sound or a radio transmitted signal to be perceived clearly and without distortion by the human ear or a receiving device. In acoustic engineering and telecommunications, it represents a measurable technical parameter depending on source intensity and environmental factors.
• Auxochrome — A group of atoms (such as -OH, -NH2, -OCH3) attached to an organic molecule containing a chromophore group, whose role is to intensify, fix, or shift the color of that substance and to enable it to bond stably to textile or biological fibers.
• Audible — Capable of being heard; whose mechanical vibrations fall within the limits of frequency (usually between 20 and 20,000 Hertz) and intensity perceptible by the human auditory organ; audible, perceptible.