Definition of "isotopic"

(chemistry, physics) of, or relating to isotopes  examples

(mathematics) Of two presemifields S and S ′ of characteristic p , when there exists three linear maps g 1 , g 2 , and g 3 from S to S ′ such that g 1 ( x ⋅ y ) = g 2 ( x ) ∘ g 3 ( y ) for all x , y ∈ S .  examples