WordReference Random House Unabridged Dictionary of American English © 2025
meth•o•trex•ate
(meth′ō trek′sāt),USA pronunciation n. [Pharm.]
- Drugsa toxic folic acid analogue, C20H22N8O5, that inhibits cellular reproduction, used primarily in the treatment of psoriasis and certain cancers and as an immunosuppressive agent.
- metho(xy)- + trexate, of unclear derivation 1950–55