The quality or state of being globular; the degree to which something is round or sphere-like.
From 'globular' plus the suffix '-ity' meaning quality or state, following standard English patterns for creating nouns from adjectives. Used in scientific contexts since the 1700s.
Geologists measure the globularity of rocks and sand grains—perfectly round grains are worn smooth by water, while jagged ones haven't traveled far, telling the stone's history!
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