Makes something unclear or impossible to see clearly, or the plural of blur (a smudged or unclear area).
From Middle English blurren, possibly from Scandinavian roots. The word evolved from meaning 'to obscure' to also describe the visual effect itself.
Your eyes naturally blur things when you look at them peripherally—this isn't a flaw, it's a feature that lets your brain focus on what matters most in your visual field.
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