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

December 26th 2024

thought insertion

a delusion in which the individual believes that thoughts have been irresistibly forced into his or her mind and ascribes these thoughts to outside sources.