massness en · NOUN
Etymology
From mass + -ness.
Meanings
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(uncountable) The quality of being a part of a mass.
It was the massness of the book in Menzel's view that had transformed it into both a problem and an enormously powerful medium that had the capacity to shape one's dreams.
2009, Andrew Piper, Dreaming in Books: The Making of the Bibliographic Imagination in the Romantic Age:But the continued movement in the direction of massness and individualism has clearly resulted in huge unpaid emotional debts […]
1975, Agricultural Development Council. Research and Training Program, University of Wisconsin--Madison. Land Tenure Center, Papers, Volume 4
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(of a noun, uncountable) The quality of being a mass noun.
A mass noun, in contrast, does not refer to a discrete object (or objects) in the real world - it refers to massness.
2013, Rint Sybesma, The Mandarin VP: