Methotrexate

1 definition found

From WordNet (r) 2.0 [wn]:

  methotrexate
       n : toxic antimetabolite that limits cellular reproduction by
           acting as an antagonist to folic acid; used to treat
           certain cancers and psoriasis and rheumatoid arthritis
           [syn: {methotrexate sodium}, {amethopterin}]