Ultrashort
adjective
1.
extremely short.
2.
(of a wavelength) smaller than 10 meters.
adjective
1.
(of a radio wave) having a wavelength shorter than 10 metres
Read Also:
- Ultrasonic
adjective 1. of, relating to, or utilizing ultrasound. adjective 1. of, concerned with, or producing waves with the same nature as sound waves but frequencies above audio frequencies See also ultrasound ultrasonic ul·tra·son·ic (ŭl’trə-sŏn’ĭk) adj. Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz. Of, […]
- Ultrasonic cleaning
noun 1. the use of ultrasound to vibrate a piece to be cleaned while the piece is immersed in a cleaning fluid. The process produces a very high degree of cleanliness, and is used for jewellery and ornately shaped items
- Ultrasonics
noun, (used with a singular verb) 1. the branch of science that deals with the effects of sound waves above human perception. noun 1. (functioning as sing) the branch of physics concerned with ultrasonic waves Also called supersonics ultrasonics ul·tra·son·ics (ŭl’trə-sŏn’ĭks) n. The acoustics of ultrasonic sound. The science and technology that deals with ultrasound.
- Ultrasonic testing
noun 1. (engineering) the scanning of material with an ultrasonic beam, during which reflections from faults in the material can be detected: a powerful nondestructive test method
- Ultrasonic welding
noun 1. the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact