self-running droplet

self-running droplet

[‚self ‚rən·iŋ ′dräp·lət]
(fluid mechanics)
A droplet that spontaneously coats a surface without the assistance of gravity or any external motion, due to the fact that it contains molecular species which are likely to react with the solid and cause the solvent to cease to wet the solid once it is coated with these molecules.
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