ultrashort

ul·tra·short

U0012500 (ŭl′trə-shôrt′)adj.1. a. Of or relating to radio waves with a wavelength less than 10 meters (33 feet).b. Of or relating to optical pulses with typical durations of femtoseconds.2. Of extremely short duration: an ultrashort flash.3. Extremely short: an ultrashort skirt.4. Of or relating to fixed-income investments with extremely short maturities, usually less than one year.

ultrashort

(ˌʌltrəˈʃɔːt) adj (Telecommunications) (of a radio wave) having a wavelength shorter than 10 metres

ul•tra•short

(ˌʌl trəˈʃɔrt)

adj. 1. extremely short, esp. in duration. 2. (of a wavelength) smaller than 10 meters. [1925–30]
Translations
ultracorto