We're working on a new site. Click here to get a sneak preview.
Medical Dictionary


noun neu·tron \ˈn(y)ü-ˌträn\

Medical Definition of NEUTRON

:  an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears