With regard to isotopes

(physics) Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.

(topology, transitive) To define or demonstrate an isotopy of (one map with another).

(chemistry, physics) of, or relating to isotopes

(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.

plural of isotope

simple past tense and past participle of isotope

present participle of isotope

plural of isotopism

(mathematics) An instance of an isotopic state.