Offer us a cool, but unusual word you like. Give us a sentence containing it.

[NNadir]

Here's mine: Aleatory.

The word means "depending on random fluctuations.

In literature there is Aleatoricism where the writer claims to be unaware of what he or she has written.

The sentence I encountered this word in was this:

The input parameters can be design as well as critical and the uncertainties can be aleatory or epistemic, however here they are treated same.

Here's the context, which although the word is cool and non-technical, comes from a technical paper:

3.3. Functional reliability analysis

As stated in Section 2, SGDHRS can fail because of classical component failures or functional failure. Functional reliability analysis for passive safety systems is quantification of the margin to failure in the appropriate response space. The margin could be affected by the following uncertainties

(1) The uncertainties associated with the parameters that govern
the system performance.

(2) Uncertainties due to the inherent non linearity in the
process.

(3) Uncertainties associated with the computer code
calculations.

(4) Uncertainties due to the interaction between the parallel
loops of the system.

Currently the standard procedure is to get the response uncertainty by propagation of the uncertainties in input parameters through a validated thermal hydraulic code (Bianchi et al., 2001). The input parameters can be design as well as critical and the uncertainties can be aleatory or epistemic, however here they are treated same. The interaction between the parallel loops can affect the functional reliability of passive systems (Mackay et al, 2008).

The reference is Annals of Nuclear Energy, in a "ASAP" article just published on line called "Integration of functional reliability analysis with hardware reliability: An application to safety grade decay heat removal system of Indian 500 MWe PFBR," by Mathews et al.