Definition

1. Noun:
   • The 12th letter of the Greek alphabet (Μ, μ): "mu" is the name for the 12th letter in the Greek alphabet, represented by the uppercase form Μ and the lowercase form μ.

Usage

• "Mu" is used primarily in contexts related to the Greek alphabet, such as in mathematics, science, engineering, and fraternity/sorority names.
• It functions as a proper noun when referring to the letter itself.

Examples

• Noun:
  • The symbol for the coefficient of friction is often the Greek letter mu (μ).
  • In physics, the prefix "micro-" is denoted by the lowercase mu (μ).
  • The fraternity name is Delta Mu.

Advanced Usage

• As a scientific symbol: The lowercase mu (μ) is widely used as an abbreviation or symbol in various scientific and technical fields.
  • The unit "micrometer" is correctly written as μm (mu-meter).
  • In statistics, μ (mu) commonly represents the population mean.

Variants and Related Words

• Muon (n): An unstable subatomic particle, similar to an electron, with a name derived from "mu".
• Mu-meson (n): An older term for the muon particle.

Synonyms

• There are no direct synonyms for "mu" as it is the specific name of a letter. In contexts where it is used as a symbol (e.g., for "micro-"), possible related terms include:
  • Micro-: The metric prefix for one-millionth.

Related Phrases

• Mu particle: Another way to refer to a muon.
• Mu metal: A nickel-iron alloy with high magnetic permeability, often used for shielding.

Noun

1. the 12th letter of the Greek alphabet