Planck

American  

[plahngk] / plɑŋk /

noun

1. Max Karl Ernst 1858–1947, German physicist: Nobel Prize 1918.

---

Planck British  

/ plaŋk, plæŋk /

noun

1. Max ( Karl Ernst Ludwig ) (maks). 1858–1947, German physicist who first formulated the quantum theory (1900): Nobel prize for physics 1918

---

Planck Scientific  

/ plängk /

1. German physicist who in 1900 formulated quantum theory, which explained and predicted certain phenomena that could not be accounted for in classical physics. Planck's theory was essential to the work of Albert Einstein, Niels Bohr, and many other modern physicists. In 1918 he won the Nobel Prize for physics.

---

Example Sentences

See Examples For:

Planck

Quantum theory suggests there is in fact such a limit, called the Planck length.

From The Wall Street Journal ● Oct. 23, 2026

One of the major puzzles in fundamental physics involves the enormous difference between the scale of the universe we experience and the Planck scale, the fundamental energy scale associated with quantum gravity.

From Science Daily ● Sep. 23, 2026

Part of the pressure comes from parents who also see their child as their only hope for the future, says renowned Chinese sociologist and director of the Max Planck Institute for Social Anthropology, Xiang Biao.

From BBC ● Aug. 25, 2026

"Decades carefully tracking stars orbiting our galaxy's central black hole, Sagittarius A*, have led to this breakthrough discovery," Reinhard Genzel of the Max Planck Institute for Extraterrestrial Physics in Germany said in a statement.

From Barron's ● Aug. 20, 2026

Ayoung physicist named Max Planck looked at the new data and within hours came up with a new equation that replaced the Rayleigh-Jeans formula.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Random Word

Spin the wheel and learn a new word!

---