Decimal notation

• decimal number (or decimal)
• decimal numeral (or decimal or, loosely, decimal number)
• decimal fraction
  • a fraction of the form $\frac{a}{10^n}$ (where $a\in \mathbb{Z},n\in \mathbb{N}$)
• decimal place (or decimal (informal), or place of decimals)
• decimal separator
  • decimal mark (or decimal marker, or decimal sign)
    • decimal point (and decimal comma) refer to a dot (and comma, resp.) when it is used as a decimal separator