sound pressure

the force per unit area exerted by a sound wave. The pressure is expressed as changes in the ambient or static pressure (e.g., atmospheric pressure), usually as root-mean-square (rms) pressure changes. The unit of measurement of sound pressure is the pascal (Pa). Also called acoustic pressure. See also decibel.

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Psychology term of the day

November 22nd 2024

respiratory disorder

a general term for any disorder involving one or more components of the respiratory system, such as the diaphragm, lungs, trachea, larynx, or nasal cavities. See also asthma; chronic obstructive pulmonary disease.