polaroid /'paubroid; 'po1s,r) l6/ n [U] (P) thin transparent film used in sun-glasses, car windows, etc to lessen sun glare: (商標(biāo)) (太陽(yáng)眼鏡、汽車窗子等的) 偏光板; 偏光片： ~camera, one able to produce positive prints within seconds after the picture has been taken. 拍立得 (立即顯影) 照相機(jī)。