Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: French
Origin: pignon, from peigne 'comb'

pinion

2 noun
     
Related topics: Technology
pinion2
[countable]T a small wheel, with teeth on its outer edge, that fits into a larger wheel and turns it or is turned by it

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