fifth force
Word Rarity
Uncommon
Frequency: Zipf frequency 4.65 in modern English
24
Scrabble Score
10
Letters
2
Syllables
8
Unique Chars
Meaning
noun
A hypothetical fundamental force, distinct from gravity, electromagnetism, and the strong force and weak force, proposed to explain various anomalous observations that do not fit existing theories.
Example Sentences
- "According to Ephraim Fischbach's 1986 theory, the more tightly packed these particles are, the more strongly the atom feels the repulsive effect of the fifth force."
- "The tantalising theory that a fifth force of nature could exist has been given a boost thanks to unexpected wobbling by a subatomic particle, physicists have revealed. […] Dr Mitesh Patel, from Imperial College London, said: “We’re talking about a fifth force because we can’t necessarily explain the behaviour [in these experiments] with the four we know about.”"