| Word | Definitions | Synonyms |
|---|---|---|
| epitope | (noun) the site on the surface of an antigen molecule to which an antibody attaches itself | Synonyms: antigenic determinant, determinant |
| isotope | (noun) one of two or more atoms with the same atomic number but with different numbers of neutrons | - |
| radioisotope | (noun) a radioactive isotope of an element; produced either naturally or artificially | - |
| tope | (noun) a dome-shaped shrine erected by Buddhists | Synonyms: stupa |