g

1. gas.
2. gelding.
3. gram(s).
4. denoting quantum states or wave functions which do not change sign on inversion through the origin.

symbol

the acceleration due to gravity, equal to 9.81 m/s².

1. the seventh letter of the alphabet.
2. the fifth note in the diatonic scale of C major.

1. gauss.
2. (in units of measurement) giga- (10⁹).

   up to 79 Gbytes of mass data storage

3. grand (a thousand dollars).

   I was up nine Gs on the blackjack tables

4. a unit of acceleration equal to that produced by the earth's gravitational field.

   I was pinned to the floor by six Gs!

1. general audiences, a rating for a film that is suitable for all ages.
2. Gibbs free energy.
3. the gravitational constant, equal to 6.67 × 10⁻¹¹ N m² kg⁻².

noun, symbol

a unit of magnetic induction, equal to one ten-thousandth of a tesla.

late 19th century: named after Karl Gauss (see Gauss, Karl Friedrich).

noun, symbol

a thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature.

named after J. W. Gibbs (see Gibbs, Josiah Willard).

noun, symbol

a metric unit of mass equal to one thousandth of a kilogram.

late 18th century: from French gramme, from late Latin gramma ‘a small weight’, from Greek.

noun, symbol

the constant in Newton's law of gravitation relating gravity to the masses and separation of particles, equal to 6.67 × 10⁻¹¹ N m² kg⁻².