The quality or state of being gluey; the degree to which something is sticky or adhesive like glue.
From 'gluey' plus the abstract noun suffix '-ness,' following the regular English pattern of converting adjectives into nouns describing their quality.
The 'glueyness' of a substance is actually measurable in labs using viscosity tests, but this everyday word reminds us that many scientific properties have their origins in simple tactile sensations people noticed long before they invented instruments.
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