The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of su…
Its definition shares important concepts with this word: instrument, consisting, tube, open, covered.Opeidoscope
An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it.
No hand-reviewed synonym set has been published for this word yet.
The broader connections below can still help you explore, but they are labelled by the evidence joining the words and should not automatically be treated as substitutes.
Words connected by meaning
Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.
Explore Academic Dictionary
The same nine destinations available from the header menu are shown here as a clear, fully visible grid.
