Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: Probably from neutral

neutron

noun
     
Related topics: Chemistry, Physics
neu‧tron [countable] technical
HCHP a part of an atom that has no electrical charge

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