Ρ

noun

rho

The Greek letter ρ (uppercase Ρ), used in mathematics, physics, and other technical fields. The reading ロー is standard in Japanese.

• 物ぶつ理り学がくでは、密みつ度どを表あらわすのにρ（ロー）がよく使つかわれる。

  In physics, ρ (rho) is often used to represent density.

• この式しきのρは抵てい抗こう率りつを意い味みします。

  The ρ in this formula means resistivity.