e/Rayl

Information
has gloss	eng: A rayl is one of two units of acoustic impedance. When sound waves pass through any physical substance the pressure of the waves causes the particles of the substance to move. The sound impedance is the ratio between the sound pressure and the particle velocity it produces. The impedance is one rayl if unit pressure produces unit velocity.
lexicalization	eng: rayl
instance of	(noun) a decimal system of weights and measures based on the meter and the kilogram and the second metric system