Definitions for "uncertainty"
The limit on the precision of a measurement. Analytical balances, for example, can weigh an object with an uncertainty of ñ0.001 or ñ0.0001 grams.
Uncertainty results from a lack of perfect knowledge of many factors that affect stock assessments, estimation of reference points, and management. Rosenberg and Restrepo (1994) identify 5 types: measurement error (in observed quantities), process error (or natural population variability), model error (mis-specification of assumed values or model structure), estimation error (in population parameters or reference points, due to any of the preceding types of errors), and implementation error (or the inability to achieve targets exactly for whatever reason).
In a nuclear decay measurement, uncertainty refers to the lack of complete knowledge of a sample's decay rate due to the random nature of the decay process and the finite length of time used to count the sample.
The portion of risk that cannot be measured or quantified. FX SignificanceWhen...
All event s, both positive and negative whose probabilities are neither 0% nor 100%. Uncertainty is a distinct characteristic of the project environment. [D02229] RMW Lack of knowledge of future event s. See also Project Risk. [D02094] PMK87 The possibility that event s may occur which will impact the project either favorably or unfavorably. Uncertainty gives rise to both opportunity and risk. See also ( project) risk. & [D02095] FWH RMH A condition, event, outcome, or circumstance for which the extent, value, or consequence is not predictable. [D03704] DSMC source of risk derived from a lack of sufficient knowledge about the underlying probabilities of adverse event s and/or their consequences. [D05138] RAMP
Unmeasurable risk.
That which is uncertain; something unknown.
Conditions where there is no reliable data to help predict future events.
When a possible occurrence is so unpredictable that its outcome is pure chance.
Principle - Heisenberg physics' theory which states "The more precisely the position [of a subatomic particle] is determined, the less precisely the momentum is known in this instant, and vice versa." Fundamentally this places a limit on knowability.
See Uncertainty Principle
It is impossible to know exactly where something is and where it is going. This is a fundamental law of nature has a major effect on quantum theory.
Contrasts with a trend. A trend is something that's gradually happening. An uncertainty is a trend or event that has a reasonable chance of happening. If it does happen, and it will make a major difference, it's known as a critical uncertainty. But a wildcard usually isn't considered a critical uncertainty, because it's too unlikely. A wildcard is that the earth could be hit by a giant comet next week. Though this might cause a problem or two, it wouldn't be considered a critical uncertainty.
the state of being unsure of something
The absence of perfectly detailed knowledge. Uncertainty includes incertitude (the exact value is not known) and variability (the value is changing). Uncertainty may also include other forms such as vagueness, ambiguity and fuzziness (in the sense of border-line cases).
The doctrine that contracts are unenforceable if unintelligible
Keywords:  uruguay, round, pricing, unit
Unit pricing Uruguay Round
You may be uncertain why "uncertainty" deserves a place in a medical dictionary but some would say that uncertainty is a key element in medicine. See the entire definition of Uncertainty
Keywords:  scientific, see
See scientific uncertainty.
Keywords:  quality
The quality or state of being uncertain.