™ / ˈpəʊlərɔɪd; NAmE ˈpoʊ-/ noun
1.
[ C ] (also ˌPolaroid ˈcamera ) a camera that can produce a photograph within a few seconds
2.
[ C ] a photograph that has been taken with a Polaroid camera
3.
[ U ] a transparent substance that is put on sunglasses and car windows to make the sun seem less bright :
Polaroid sunglasses
4.
Polaroids [ pl. ] (also ˌPolaroid ˈsunglasses ) sunglasses that have a layer of Polaroid on them
For more information see the Cultural Guide
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WORD ORIGIN
1930s: from polarize + -oid .