photon means the quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson. It carries an Arena rating of 1444, earned across 22 head-to-head judged battles.
Among words judged in Lexicurio's Arena, photon ranks #497 of 17,124 for Most Sublime Words, #958 of 17,127 for Words That Escaped Their Books, #1,168 of 17,149 for Most Exacting Words, #2,732 of 17,126 for Most Elegant Words.
photon is pronounced /ˈfəʊtɒn/.
Why “photon” is a great word
The discrete, massless particle of light and all electromagnetic radiation. From photo- (from Greek phōs, "light") + -on (suffix denoting a unit or particle), coined in 1916 by physicist Leonard Troland for a unit of retinal illumination and later popularized in its modern sense by Gilbert N. Lewis in 1926. Unlike the electron—which has mass, charge, and a home within the atom—or the classical wave—a smooth, continuous undulation—the photon is the irreducible, paradoxical unit of both. It is the messenger that crosses the galactic void unchanged, the click in the photodetector in a pitch-black lab, the precise bundle of energy that greens a leaf—the universe's fundamental transaction, paid in pure, chargeless light.
Etymology
From photo- + -on. Coined by American physicist Leonard Troland in 1916 as a unit of light hitting the retina, and later popularized in a more modern sense by Gilbert N. Lewis, with the term gaining acceptance in the physics community by the late 1920s.
noun
- The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson.
Definitions & examples from Wiktionary (CC BY-SA 3.0).
Words closest in meaning
By meaning, not spelling — each word's AI semantic fingerprint, nearest first.
- phonon 69% match — The quantum of acoustic or vibrational energy (sound), considered a discrete particle rather than a wave. vs photon →
- luxon 65% match — Any particle that travels at exactly the speed of light and has zero mass: typically a photon. vs photon →
- photoenergy 58% match — The energy of a system of photons or other wavepackets vs photon →
- photonic 58% match — of, or relating to photons or to photonics vs photon →
- graviphoton 57% match — a hypothetical particle that emerges as an excitation of the gravitational field but whose physical properties are virtually indistinguishable from a photon vs photon →
- biophoton 57% match — A low-energy photon emitted from a biological source (but not by bioluminescence) vs photon →
- antiphoton 56% match — The antiparticle of a photon (identical to a photon). vs photon →
- planckon 55% match — A Planck particle. vs photon →