- (arithmetic) A point (.) used to separate the fractional part of a decimal from the whole part.
- (arithmetic) A decimal mark, any symbol used to separate the fractional part of a decimal from the whole part.
- (proscribed) A decimal place.
- (proscribed, a decimal place): The use of decimal point to mean "a digit in the fractional part of a decimal" is incorrect. Decimal numbers can have any number of decimal places, but have only one decimal point.
Note: In some countries, especially those in continental Europe, the symbol used is a comma, and so the word used in the languages spoken in these countries is often the same as or derived from the word for comma.
the point used in English mathematics
the decimal mark symbol, characteristic to the native tongue
decimal place — see decimal place