Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “positron”

See all translations

positron

noun [C] uk   /ˈpɒz.ɪ.trɒn/ us    /ˈpɑː.zɪ.trɑːn/ specialized
an extremely small piece of matter with a positive electrical charge, having the same mass as an electron
Translations of “positron”
in Chinese (Traditional) 正電子,陽電子…
in Chinese (Simplified) 正电子,阳电子…
(Definition of positron from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of positron?
Add Cambridge dictionaries to your browser to your website

Definitions of “positron” in other dictionaries

Word of the Day

comma

the symbol , used in writing to separate parts of a sentence showing a slight pause, or to separate the single things in a list

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More