The quality, state, or condition of being herbivorous; the characteristic of eating plants exclusively.
From 'herbivorous' plus the abstract noun suffix '-ness.' Creates a noun describing the trait or characteristic itself rather than the practice.
The herbivorousness of cows is absolute—they literally cannot eat meat, their stomachs are built only for grass—so unlike humans who choose vegetarianism, cows have no dietary agency at all.
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