ultrathin

[ uhl-truh-thin ]
/ ˌʌl trəˈθɪn /

adjective

extremely thin: an ultrathin wristwatch.

Origin of ultrathin

First recorded in 1945–50; ultra- + thin

Words nearby ultrathin

ultrasound cardiography, ultrasound scanner, ultrastructural anatomy, ultrastructure, ultrasuede, ultrathin, ultrathin section, ultratropical, ultraviolet, ultraviolet astronomy, ultraviolet filter