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

(mathematics, informal) Bijective numeration in base ten.

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.

(management) A budget developed disregarding the expenses or costs of the prior year, requiring explicit justification for all expenditures.

present participle of zerg

(computing, informal) The rule that a database, a user interface, etc. should allow for either zero, one, or an indefinite number of an entity.

(informal) The sound made when someone places the mouth against skin and blows, imitative of the sound of flatulence.

atmospheric air specially cleaned so that it contains less than 0.1 ppm of hydrocarbon impurities; it then is usable in laboratory procedures such as versions of gas chromatography in which sufficiently pure air may serve as a carrier gas.

(usually used attributively, finance) A non-existent coupon. / (finance) A financial security that does not pay interest periodically.

(computing, idiomatic) (of vulnerability) newly discovered, and therefore still not fixed and possibly exploited by hackers or other criminals