noun
joule
JOOL
Joule (noun) means the SI unit of energy, work and heat, equal to one watt-second. Example: “The energy is measured in joules.”
noun
1
technical The SI unit of energy, work and heat, equal to one watt-second.
"The energy is measured in joules."
"A joule is the work done by a force of one newton over one metre."
"The heater delivers a few thousand joules every second."
How to use joule
Learner’s notesIn plain EnglishThe standard unit for measuring energy, work and heat.
When to use it
It is a scientific term, written J as a symbol.
Memory tip
The unit name is written in lower case, while its symbol is a capital J.
Trace the full origin ↓
Common pairings
joules of energy
measured in joules
one joule
joules per second
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The energy is measured in _____.
Etymology
The unit is named after the English physicist James Prescott Joule, who lived from 1818 to 1889. His surname is a variant of Joel.
Synonyms
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J
Related words
Rhymes for joule
See all rhymes for joule →Frequently asked questions
What is a joule?
A joule is the SI unit of energy, work and heat. It equals one watt-second.
Who was the joule named after?
It is named after the English physicist James Prescott Joule.
How do you pronounce joule?
It is usually said JOOL, though some speakers say it to rhyme with owl.
What is the meaning of joule?
"joule" (noun) means the SI unit of energy, work and heat, equal to one watt-second.
