decimal

[/ˈdesɪməl/]
adjective/nounmasculinepl: decimals
decimal
1. relating to or based on the number ten; expressed in base-10 number system
The decimal system is used in most modern mathematics.
O sistema decimal é utilizado na maioria da matemática moderna.
2. a number expressed with a decimal point, representing a fraction with a denominator that is a power of ten
The decimal 0.5 is equivalent to the fraction 1/2.
O decimal 0,5 é equivalente à fração 1/2.
3. a digit or digits after the decimal point
The number 3.14159 has five decimals.
O número 3,14159 tem cinco casas decimais.
The decimal system is fundamental to Brazilian and Portuguese mathematics education. Notably, both Brazil and Portugal use the comma (,) as the decimal separator rather than the period (.) used in English-speaking countries, so 3,14 in Portuguese equals 3.14 in English.
Synonyms / Sinônimos
decimal numberbase-10
Antonyms / Antônimos
hexadecimalbinaryoctal

Regional Variations

General Brazilian
decimal
Standard term used in mathematics and everyday contexts; decimal point is 'vírgula' (comma)
São Paulo
decimal
Same as general Brazilian usage
Rio de Janeiro
decimal
Same as general Brazilian usage
Portugal
decimal
Same term; Portuguese also uses 'casa decimal' for decimal place

Related Words

decimal pointfractionpercentagerounding

Related Idioms & Phrases

decimal place
decimal point
to two decimal places
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