💡 Words with a Similar Meaning to "Speed of light"
Found via reverse dictionary — words that share a conceptual meaning.
| Word | Definition |
|---|---|
| light speednoun | Alternative form of lightspeed. [The speed of light (in vacuum unless another medium is specified).] |
| cnoun | (music) The middle tone in either one of the sets of seven white keys on a keyboard or a set of seven strings on a stringed instrument. |
| lightspeednoun | The speed of light (in vacuum unless another medium is specified). |
| rapiditynoun | speed, swiftness; the condition of being rapid |
| speed of soundnoun | (physics) The speed at which sound is propagated through some medium under specified conditions. |
| electromagnetic wavenoun | (physics) Electromagnetic radiation, such as light and radio waves. |
| planck speednoun | (physics) The velocity equal to one Planck length per Planck time; equal to the speed of light. Symbol is v_P or c. |
| light secondnoun | (astronomy, physics) A unit of length equal to the distance light travels in one second: about 300 megameters |
| radio energynoun | (physics) The energy transmitted by radio-frequency electromagnetic radiation |
| planck velocitynoun | (physics) The Planck speed. |
| rest energynoun | (physics) The energy of the mass component of a body at rest; equal to the product of its rest mass and the square of the speed of light |
| planck accelerationnoun | (physics) The acceleration from rest to the speed of light in one Planck time. |
| luxonnoun | (physics) Any particle that travels at exactly the speed of light and has zero mass: typically a photon. |
| phase velocitynoun | (physics) The velocity of propagation of a pure sine wave of infinite extent and infinitesimal amplitude. |
| lightnoun | (physics, uncountable) Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers): visible light. |
| information velocitynoun | (marketing) The speed of information flow about a product in a market. |
| light wavenoun | (physics) An electromagnetic wave of light. |
| electromagnetic radiationnoun | Radiation (quantized as photons) consisting of oscillating electric and magnetic fields oriented perpendicularly to each other, moving through space. |
| speednoun | The state of moving quickly or the capacity for rapid motion. |
| speed parameternoun | (relativity) speed divided by the speed of light, symbol β |
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