| Word | Definitions | Synonyms |
|---|---|---|
| centrex | (noun) (CENTRal EXchange) a kind of telephone exchange | - |
| methotrexate | (noun) toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis | Synonyms: amethopterin, methotrexate sodium |
| naltrexone | (noun) an oral antagonist against the action of opiates | - |