also: こんま
comma
Refers to the punctuation mark used to separate clauses or items in a list.
There are too many commas in this sentence.
decimal point; radix point
Used in mathematics and computing to separate the integer part from the fractional part of a number. In Japanese, the decimal point is often read as コンマ.
See also: 小数点
Pi is 3 point 14.
Standard katakana spelling; the most common form.
Alternate katakana spelling; less common than コンマ.
Borrowed from English 'comma', with the form コンマ likely influenced by Dutch or older Japanese transcription conventions.