(obsolete or rare) Covariance.

(philosophy) Desire conceptualized as a generative force rather than a mere lack of something.

A child born to anyone involved in the making of a film during its production.

plural of production baby

(topology) The topology of the Cartesian product of two or more topological spaces which is generated from a basis whose elements are Cartesian products of open subsets of the original spaces, such that for each such Cartesian product only a finite quantity of such subsets are proper.

(chemistry, physics) The product of the individual solubilities of the cation and anion of a salt

(politics) According to Marxist theory, the chaotic and volatile nature of all commodity production based on private property, as opposed to planned economies.

(algebra) A kind of product between vectors and/or multivectors which is associative, linear, and alternating.

(mathematics) An infinite product that approximates half of pi: 𝜋/2=∏ₙ₌₁ ᪲(4n²)/(4n²-1)=∏ₙ₌₁ ᪲((2n)/(2n-1)·(2n)/(2n+1))\[6pt]= Big (2/1·2/3 Big )· Big (4/3·4/5 Big )· Big (6/5·6/7 Big )· Big (8/7·8/9 Big )·;⋯\.

Any product derived from the trees or bushes of a forest, such as logs, timber, lumber, wood pulp, sawdust, bark mulch, leaf mulch, forage, or feedstocks.