noun
also geiger-nuttall relation | ̷ ̷ ̷ ̷|nəd.ˌȯl-
Usage: usually capitalized G&N
Etymology: after H. Geiger and John M. Nuttall died 1958 British physicist
: a statement in nuclear physics: for an alpha-emitting radioactive substance the logarithm of the decay constant and the logarithm of the range in air of the emitted alpha rays are in linear relation to each other