diffusing screen diffusing screen /dɪˈfjuzɪŋ skriːn/

noun

1. A transparent filter that reduces the light (or some wavelengths of the light) passing through it  ( diffusing screen , light filter )
   a transparent filter that reduces the light (or some wavelengths of the light) passing through it
   
   

 telegraph telegraph /ˈtɛləˌgræf/

noun

1. () Apparatus used to communicate at a distance over a wire (usually in Morse code)  ( telegraphy , telegraph )
   apparatus used to communicate at a distance over a wire (usually in Morse code)
    The telegraph revolutionized long-distance communication in the 19th century.
   The telegraph revolutionized long-distance communication in the 19th century.
   
   

verb

1. () (telegraphy) send cables, wires, or telegrams  ( cable , telegraph , wire )
   (telegraphy) send cables, wires, or telegrams
   

 lipoma lipoma /laɪˈpoʊmə/

noun

1. A tumor consisting of fatty tissue  ( adipose tumor [American] , lipoma , adipose tumour [Canadian, British] )
   a tumor consisting of fatty tissue
   
   

 Polaroid Polaroid /ˈpoʊlɝˌɔɪd/

noun

1. (trade mark) a plastic film that can polarize a beam of light; often used in sunglasses to eliminate glare  ( Polaroid )
   (trade mark) a plastic film that can polarize a beam of light; often used in sunglasses to eliminate glare
    Many beachgoers wear sunglasses with Polaroid lenses to reduce glare.
   Many beachgoers wear sunglasses with Polaroid lenses to reduce glare.