Template:Glossary:SYMBOLS

• ° : degree (symbol: °) used for degrees of arc / hours / temperature etc.
• ⌀ : diameter (symbol: ⌀) diameter of a conic section is typically defined as any chord which passes through the conic's centre
• µ : micro (symbol: µ) is a prefix in the SI and other systems of units denoting a factor of 10^-6 (one millionth)
• № : numero (symbol: №) abbreviation of the word number(s) indicating ordinal numeration
• Ω : ohm (symbol: Ω) is the SI derived unit of electrical resistance