| THRASONIC | • thrasonic adj. (Obsolete) thrasonical. • THRASONIC adj. given to or marked by boasting and bragging, also THRASONICAL. |
| INFRASONIC | • infrasonic adj. (Of sound waves, acoustics) Having frequencies below the human audible range. • infrasonic adj. (Of a device) Generating or employing such sound waves. • INFRASONIC adj. having or relating to a frequency below the audibility range of the human ear. |
| ULTRASONIC | • ultrasonic adj. (Acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with… • ULTRASONIC adj. denoting airwaves or vibrations with frequencies higher than those audible to the human ear. |
| QUADRASONIC | • quadrasonic adj. Quadraphonic. • QUADRASONIC adj. relating to a system of sound recording and reproduction that uses four independent loudspeakers to give directional sources of sound. |
| THRASONICAL | • thrasonical adj. Like Thraso (a character in the play Eunuchus by Terence); boastful, bragging, vainglorious. • THRASONICAL adj. given to or marked by boasting and bragging, also THRASONIC. |
| ULTRASONICS | • ultrasonics n. The science and technology of ultrasound. • ULTRASONICS n. the study and use of ultrasonic waves. |
| QUADRASONICS | • QUADRASONICS n. a system of sound recording and reproduction that uses four independent loudspeakers to give directional sources of sound. |
| THRASONICALLY | • thrasonically adv. In a thrasonical manner. • THRASONICAL adv. given to or marked by boasting and bragging, also THRASONIC. |
| ULTRASONICALLY | • ultrasonically adv. In an ultrasonic manner. • ultrasonically adv. Using ultrasonics. • ULTRASONIC adv. denoting airwaves or vibrations with frequencies higher than those audible to the human ear. |
| ULTRASONOGRAPHY | • ultrasonography n. (Medicine) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus. • ultrasonography n. The use of ultrasound to form images of underwater structures. • ULTRASONOGRAPHY n. the use of ultrasound. |