U+2300 • symbol
The Diameter Sign (⌀) is a typographic symbol used primarily in technical drawings and engineering to denote the diameter of a circular object or feature. It is a standardized symbol that helps specify dimensions clearly in mechanical and architectural contexts.
The Symbol For Diameter Sign (⌀) is a unicode character in the Basic Multilingual Plane Plane. It is found in the Miscellaneous Technical block and was approved as part of Unicode Version 1.1 in 1993
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