radar = radio detecting and ranging
scuba = self-contained underwater breathing apparatus
laser = light amplification by stimulated emission of radiation
NASA = National Aeronautics and Space Administraiton
UNESCO = United Nations Educational, Scientific, and Cultural Oraganization
UFO = unidentified flying object
OPEC = Organization of Petroleum Exporting Countries
JPEG = Joint Photographic Experts Group
NATO= North Atlantic Treaty Organization
DNA = DeoxyriboNucleic Acid
CD-ROM = Compact Disk Read Only Memory