1. the 17th letter of the Greek alphabet (Ρ, ρ)

Examples

• The Greek letter rho is used in mathematics to represent density.
• In the equation, rho stands for the correlation coefficient.
• Students learning Greek must memorize rho along with the other letters.
• The symbol ρ (rho) appears frequently in physics formulas.
• Rho comes after pi in the Greek alphabet.
• The professor wrote the lowercase rho on the blackboard.