noun Etymology: International Scientific Vocabulary Date: 1923 a proton or neutron especially in the atomic nucleus, a hypothetical single entity with one-half unit of isospin that can manifest itself as either a proton or a neutron, ~ic adjective
NUCLEON
Meaning of NUCLEON in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012