Concept: infrasound in the concept vocabulary

Concept URI	http://www.eionet.europa.eu/gemet/concept/4320
Preferred label	infrasound
Definition	Vibrations of the air at frequencies too low to be perceived as sound by the human ear, below about 15 hertz.
Notation
Status	Valid
Status Modified	2013-12-05
Accepted Date	2013-12-05
Not Accepted Date
Has broader	7933 (sound) in gemet2/concept
Has close match	http://data.uba.de/umt/_00013395 http://dbpedia.org/resource/Infrasound
Source	MGH (McGraw-Hill Zanichelli Dizionario Enciclopedico Scientifico e Tecnico Inglese-Italiano Italiano-Inglese) in gemet2/source