Formula Symbols - M

Written by Jerry Ratzlaff on . Posted in Nomenclature & Symbols for Engineering, Mathematics, and Science

For other symbols see:  A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

See Dimensionless Numbers, General Constants

SymbolGreek SymbolDefinitionUSMetric
\(m_e\) - electron (rest) \(lbm\) \(kg\)
\(Ma\) - Mach number dimensionless number dimensionless number
\(\Sigma\) Sigma macroscopic cross section - -
\(M \;,\; m_i\) - magnetic - -
\(B\) - magnetic field - -
\(n_m \;,\; \nu_m\) nu magnetic diffusivity - -
\(m \;,\; \mu\) mu magnetic dipole moment - -
\(H \;,\; \vec{H}\) - magnetic field - -
\(\phi_m\) phi magnetic flux - -
\(B\) - magnetic flux density - \(T\)
\(\Phi_o\) Phi magnetic flux quantum constant constant
\(B \;,\; \vec{B}\) - magnetic induction - -
\(\mu\) mu magnetic moment of a particle - -
\(\mu\) mu magnetic permeability - -
\(U_m\) - magnetic potential difference - -
\(p_m\) - magnetic pressure - -
\(\beta\) beta magnetic pressure ratio - -
\(X\) - magnetic susceptibility - -
\(A\) - magnetic vector potential - -
\(F_m\) - magnetomotive force - -
\(M\) - magnetization - -
\(M\) - magnification - -
\(MF\)   magnification factor - -
\(V\) - Manning formula \(ft\;/\;sec\) \(m\;/\;s\)
\(n\) - Manning roughness coefficient - -
\( Ma\) - Marangoni number dimensionless number dimensionless number
\(m\) - mass \(lbm\) \(kg\)
\(\mu_m\) mu mass attenuation coefficient - -
\(\dot {m}_c\) - mass condensation rate \(lbm\;/\;hr\) \(kg\;/\;s\)
\(\rho \) rho mass density - \(kg\;/\;m^3\)
\(D_m\) - mass diffusivity - \(cm^2\;/\;s\)
\(\Delta\) Delta mass excess - -
\(\dot {m}_f\) - mass flow rate \(lbm\;/\;sec\) \(kg\;/\;s\)
\(B \;,\; \Gamma\) Gamma mass flow rate per unit area \(lbm\;/\;hr-ft^2\) \(kg\;/\;s \cdot m^2\)
\(w\) - mass fraction - -
\(m \;,\; \dot {m}\) - mass leak rate \(lbm\;/\;sec\) \(kg\;/\;s\)
\(I\) - mass moments of inertia \(lbm-ft^2\) \(kg \cdot m^2\)
\(A\) - mass number - -
\(\mu\) mu mass of molecule - -
\(K \;,\; k\) - mass transfer coefficient - -
\(\dot {m}_t\) - mass transfer rate \(lbm\;/\;sec\) \(kg\;/\;s\)
\(J\) - Massieu function - -
\(D\) - material density \(g \;/\; cm^3\) \(kg \;/\; m^3\)
\(m\) - mean - -
\(l \;,\; \lambda\) lambda mean free path - -
\(\tau \;,\; \tau_m\) tau mean life - -
\(v_m\) - mean velocity \(ft\;/\;sec\) \(m\;/\;s\)
\(ME\) - mechanical efficiency - -
\(ME\) - mechanical energy - -
\(W\) - mechanical work - \(J\)
\(Z_w\)   metal removal rate \(ft^3\;/\;min\) \(m_3\;/\;s\)
\(K\) - minor loss coefficient - -
\(K\) - mixing factor - -
\(\mu \;,\; \mu_n \;,\; \mu_p\) mu mobility - -
\(b\) - mobility ratio - -
\(E \;,\; \lambda\) lambda modulus of elasticity \(lbf\;/\;ft^2\) \(Pa\)
\(U_r\) - modulus of resilience \(lbf\;/\;in^2\) \(MPa\)
\(U_t\) - modulus of toughness \(lbf\;/\;in^2\) \(MPa\)
\(n\) - modular ratio - -
\(m\) - module - \(mm\)
\(MC\) - moisture content - -
\(m\) - molality - \(mol\;/\;1000g\)
\(M\) - molar concentration \(lbmol\;/\;ft^3\) \(kmol\;/\;m^3\)
\(H\) - molar enthalpy \(Btu\;/\;lbmol\) \(kJ\;/\;kmol \)
\(S\) - molar entropy \(Btu\;/\;lbmol- ^\circ {R}\) \(kJ\;/\;kmol \cdot K\)
\(x\) - molar fraction - -
\( R\) - molar gas constant \(ft-lbf\;/\;lbmol-^\circ R\) \(J\;/\;kmol\cdot K\)
\(Q\) - molar heat \(Btu\;/\;lbmol\) \(kJ\;/\;kmol\)
\(U\) - molar internal energy \(Btu\;/\;lbmol\) \(kJ\;/\;kmol\)
\(M\) - molar mass of gas - -
\(M\) - molar mass - -
\(r\) - molar ratio of solution - -
\(C\) - molar specific heat \(Btu\;/\;lbmol- ^\circ {F}\) \(kJ\;/\;kmol \cdot {K}\)
\(M\) - molarity - \(mol\;/\;l\)
\(m\) - molarity of solution - -
\(n\) - mole - -
\(\chi\) chi mole fraction - -
\(MW\) - molecular weight \(lbm\;/\;lbmol\) \(kg\;/\;kmol\)
\(M\) - moment \(ft-lbf\) \(N \cdot m\)
\(M\) - moment of force \(ft-lbf\) \(N \cdot m\)
\(I \;,\; J\) - moment of inertia - \(kg \cdot m^2\)
\(p\) - momentum \(lbm-ft\;/\;sec\) \(kg \cdot m\;/\;s\)
\(Mo\) - Morton number dimensionless number dimensionless number
\(M\) - mutual inductance - -