Not+audible
51inaudible — [in ôd′ə bəl] adj. [LL inaudibilis] not audible; that cannot be heard inaudibility n. inaudibly adv …
52in|au|di|ble — «ihn duh buhl», adjective. not audible; that cannot be heard: »the inaudible and noiseless foot of Time (Shakespeare) …
53Ultrasound — Not to be confused with Supersonic .Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy,… …
54Spiritualism — Not to be confused with Spirituality. This article is about the religion. For other uses of spiritualism, see Spiritualism (disambiguation). By 1853, when the popular song Spirit Rappings was published, Spiritualism was an object of intense… …
55Montreal Metro — Not to be confused with Greater Montreal. Montreal Metro Info …
56International Phonetic Alphabet — Not to be confused with NATO phonetic alphabet. IPA redirects here. For other uses, see IPA (disambiguation). For usage of IPA in Wikipedia, see Wikipedia:IPA or Wikipedia:IPA/Introduction International Phonetic Alphabet …
57Laserdisc — Not to be confused with disk laser, a flat configuration solid state laser. Not to be confused with VCD, DVD, or Blu ray, optical disc formats employing digital video encoding. Not to be confused with CED, a coincident but incompatible analogue… …
58Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …
59Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …
60Dora the Explorer — Not to be confused with Dora the Female Explorer. Dora the Explorer …
