The quality or state of being dial-like or having characteristics of a dial; the property of being suitable for dialing.
From dial + -iness (suffix forming nouns expressing state or quality). This is a rare formation following English word-building conventions, though it's not commonly used in modern English.
This word is so obscure it's barely used—it's the kind of word that linguists know exists but almost nobody needs, showing how English can theoretically create words even when practical communication doesn't require them.
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