Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Old French
Origin: Latin arcus 'bow, arch, arc'

arc

 noun
     
Related topics: Shapes, Patterns, Maths, Electrical
arc [countable]
1CF a curved shape or line:
the arc of a rainbow
2 part of a curved line or a circle:
The sun moves across the sky in an arc.
3TEE a flash of light formed by the flow of electricity between two points
—arc verb [transitive]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary