Types & Characteristics of Genres: Poetry. A main literary genre is poetry. All poems share specific characteristics. For example, poetry is written in lines and stanzas instead of sentences and paragraphs. Some poems follow strict rules as to the number and length of lines and stanzas, whereas many poems are much more free-flowing.
Freebase(0.00 / 0 votes)Rate this definition: Methotrexate. Methotrexate, abbreviated MTX and formerly known as amethopterin, is an antimetabolite and antifolate drug. It is used in treatment of cancer, autoimmune diseases, ectopic pregnancy, and for the induction of medical abortions. It acts by inhibiting the metabolism of folic acid.
Methotrexate is a medicine that makes your immune system less active. It is used to treat certain types of cancer. It is also used to treat severe rheumatoid arthritis and psoriasis when other treatments don't help. Rheumatoid arthritis and psoriasis are autoimmune diseases, which means that they are associated with an immune system that is too active. In some cases, methotrexate can help people who have these problems.