(of a temperature) below 0°C; freezing cold

A tensor with all entries equal to zero; where any pattern of covariant and contravariant indices have all components equal to 0. / A generalization of the zero vector to tensor space.

(physics) The coldest possible temperature, zero on the Kelvin scale, or approximately −273.15 °C, −459.67 °F; total absence of heat; temperature at which motion of all molecules would cease.

The state of apparent weightlessness which occurs in a very low gravity field, or in free fall.

(firearms) The adjustment of a sight, exactly parallel to the axis of the bore of the gun to which it is attached.

(logic) Describing situations in which the veracity of a statement may be shown to be true without revealing any other information.

(US) The smallest size of women's clothing / (informal) A woman with a very low body mass index, especially such a fashion model

(mathematics) a vector whose value in every dimension is zero. i.e. ⃑0=<0,0,…,0> / (linear algebra) a vector 0 in a vector space V such that for any v∈V, 0+v=v

(computing) A signed magnitude representation of zero in which the sign bit indicates a positive number.

(computing) A signed magnitude representation of zero in which the sign bit indicates a negative number.