Words starting with S

• sky wave — Noun – English ～ a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface
• Schrodinger wave equation — Noun – English ～ the fundamental equation of wave mechanics
• shock wave — Noun – English ～ a region of high pressure travelling through a gas at a high velocity; "the explosion created a shock wave"
• standing wave — Noun – English ～ a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time
• stationary wave — Noun – English ～ a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time
• solitary wave — Noun – English ～ (physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate; "soliton waves can travel long distances with little loss of energy or structure"
• sound wave — Noun – English ～ (acoustics) a wave that transmits sound
• soliton wave — Noun – English ～ (physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate; "soliton waves can travel long distances with little loss of energy or structure"
• sine wave — Noun – English ～ a wave whose waveform resembles a sine curve
• short wave — Noun – English ～ a radio wave with a wavelength less than 100 meters (a frequency greater than 3 megahertz)
• slot-waveguide – not validated
• scale wax — Noun – English ～ partly refined paraffin wax
• ski wax — Noun – English ～ wax used on the bottom of skis
• sealing wax — Noun – English ～ fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
• shellac wax — Noun – English ～ a hard wax separated from shellac by its insolubility in alcohol
• seven-way – not validated
• six-way – not validated
• sluice-ways – not validated
• schulte-waysers – not validated
• slip-wc – not validated

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