(construction) the drainage condition in which consideration has been made during design for all loading deflections of the deck and additional roof slope has been provided to ensure drainage within 48 hours following rainfall during conditions conducive to drying.

The position, into which helpers will typically place an unconscious person, of lying on the floor three-quarters prone, on one's side; this position maximises the likelihood of the person's airway remaining open.

(economics) The branch of economics that concerns the description and explanation of economic phenomena and their causal relationships

(mathematical analysis) A function whose domain is a σ-algebra, whose codomain is [0,∞], and which is countably additive.

plural of sex position

plural of positive edge

(literally) The location of the fetus inside a womb. / A posture in which the head and knees are brought as close to the abdomen as possible.

plural of fetal position

plural of positional isomer

(mathematics, stochastic processes) the quality of being positive recurrent.