ISOTOPE

isotope

(noun) one of two or more atoms with the same atomic number but with different numbers of neutrons

Source: WordNet® 3.1

Etymology 1

Noun

isotope (plural 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. As a consequence, atoms of isotopes will have the same atomic number but a different mass number.

Usage notes

Technically, isotopes are nuclides having the same atomic number but different mass number. In practice, the term isotope is often used instead of nuclide.

Etymology 2

Verb

isotope (third-person singular simple present isotopes, present participle isotoping, simple past and past participle isotoped)

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

Anagrams

• pooiest, pooties

Source: Wiktionary