(astronomy) The moment when the sun appears to cross the celestial equator while tilting towards from the observer, taking place in March in the northern hemisphere and September in the southern hemisphere.

Any nonexpendable equipment that has been fixed in place or attached to a craft, vehicle or other equipment, but which may be detached without impairing the item removed or affecting the basic function of the object to which it is fastened.

(chemistry) a symbolic representation of a chemical reaction; reactants are represented on the left, and products on the right

(veterinary medicine) a condition that affects the muscles of horses, ranging from stiffness and mild cramps to the horse becoming unable to stand with discoloured urine.

Alternative spelling of equalization

(astronomy) Of or relating to the spring or autumnal equinox. / (astronomy) Of or relating to the celestial equator. / (uncommon) Equatorial: Of or relating to the equator of the Earth.

The great circle midway between the celestial poles; the celestial equator. / (rare) The terrestrial equator. / An equinoctial gale.

(number theory) The Diophantine equation x²-my²=1 for a given integer m, to be solved in integers x and y.

(physics) saturation vapor pressure

(physics) Any system in which the sum of the forces, and torque, on each particle of the system is zero; mechanical equilibrium. / (economics) A market in which demand and supply are the same.