The process or practice of measuring and adjusting proportions, especially in geometry or architecture.
From Latin ad- + mensuratio (measuring), from mensurare (to measure). The suffix -ation creates a noun indicating process or action. This technical term appears in architectural and mathematical texts from the Renaissance onward.
Architects during the Renaissance became obsessed with perfect proportions—admensuration was their tool for ensuring buildings had mathematically beautiful relationships between parts, which they believed created harmony and beauty.
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