💡 Words with a Similar Meaning to "Planck epoch"
Found via reverse dictionary — words that share a conceptual meaning.
| Word | Definition |
|---|---|
| planck timenoun | (physics) A natural unit of time, equivalent to the time it takes light to traverse one Planck length; it is the duration of time at which quantum gravity effects are expected to become significant. |
| planck eranoun | Synonym of Planck epoch. |
| plancknoun | (physics) Used attributively in the names of various units, formulae etc. first devised or worked on by the German physicist Max Planck (1858–1947), chiefly in the realm of quantum theory. |
| planck scalenoun | (physics) The scale at which quantum-mechanical effects become significant to depicting spacetime and other gravitational phenomena, typically defined as being on the order of one Planck length (~10⁻³⁵ m). |
| planckonnoun | (physics) A Planck particle. |
| planck accelerationnoun | (physics) The acceleration from rest to the speed of light in one Planck time. |
| planck unitnoun | (physics) Any one of several natural units in a system originally proposed by Max Planck based on universal constants. Symbols for Planck units are the symbol for the physical quantity with a subscript P. |
| planck relicnoun | (physics, cosmology, astronomy, astrophysics, quantum mechanics, relativity theory) A black hole with an event horizon on the order of a Planck length (~ 10⁻³⁵ metres), and a mass on the order of a Planck mass (~ 20 micrograms). |
| planck densitynoun | (physics) The unit of density in the system of Planck units, equal to one Planck mass in one Planck volume. |
| planck particlenoun | (physics) A hypothetical particle having physical quantities on the Planck scale, most importantly being one Planck mass in mass. |
| planck powernoun | (physics) The unit of power in the system of Planck units, equal to transferring one Planck energy in one Planck time: P_p=(c⁵)/G≈3.628×10⁵² mbox W |
| planck lengthnoun | (physics) A unit of length, believed to be the scale at which quantum gravity effects become significant, that is defined in terms of the speed of light, the gravitational constant and the reduced Planck's constant, namely: ℓ_P=√hbar Gc³≈1.616 252(81)×10⁻³⁵ mbox m |
| planck velocitynoun | (physics) The Planck speed. |
| planck angular frequencynoun | (physics) An angular frequency of one radian per Planck time. |
| 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. |
| planck energynoun | (physics) A natural unit of energy, equivalent to the mass energy of a Planck particle (E_P=c^(2m_P)≈1.95608×10⁹J) or the energy per quantum at a temperature of one Planck temperature (kT_P). |
| planck pressurenoun | (physics) The unit of pressure in the system of Planck units, equal to one Planck force in one Planck area (or one Planck energy in one Planck volume): p_p=(c⁷)/(hbar G²)≈4.633×10¹¹³ mbox Pa. |
| planck momentumnoun | (physics) The momentum of one Planck mass traveling at the speed of light:P_P=√≈6.525 mbox Ns. |
| planck starnoun | (astrophysics) A hypothetical astronomical object whose energy is around the Planck density (5.155 × 10⁹⁶ kg/m³). |
| planck forcenoun | (physics) The unit of force in the system of Planck units, equal to the amount of force required to accelerate one Planck mass by one Planck acceleration: F_P=(c⁴)/G≈1.21×10⁴⁴ mbox N |
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