What is the definition of Captured Fluid?

A 'captured fluid' is like the ultimate sniper's target, but instead of a bullet, it's a precious liquid - be it blood, sweat, tears, or even the life-giving water from a leaky faucet. Picture this: "After the lab accident, the researcher couldn't help but capture a fluid so viscous it resembled molasses, leading to a debate on whether it was a new form of 'cold' or 'hot' liquid."

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Now, here's an unsettling example sentence: "In the heart of the abandoned asylum, a spectral figure of 'captured fluid' hovered, its chilling liquid essence whispering secrets only the damned could hear."