Sound

Description

Long wavelength electromagnetic energy that is perceived by humans via hearing. Sound waves travel through air easily and through some other types of materials. Some terms for materials that block or absorb sound waves are: insulation sound insulation, plaster acoustical plaster, and deafening. Sound transmissions that are unpleasant are typically called noise, such as traffic noise, urban noise, etc.

Synonyms and Related Terms

noise

Authority

• The American Heritage Dictionary or Encarta, The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

• Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000