|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a gadget; dingus; thingumbob.|
supersonic su·per·son·ic (s&oomacr;'pər-sŏn'ĭk)
Having, caused by, or relating to a speed greater than the speed of sound in a given medium, especially air.
Of or relating to sound waves beyond human audibility.