| am·i·nop·ter·in
Audio Help (ām'ə-nŏp'tər-ĭn) Pronunciation Key
n. A folic acid antagonist, C19H20N8O5, used as an antineoplastic agent. It has been mainly replaced by methotrexate. [amino- + pterin, a chemical compound derived from pteridine, a compound first identified in butterflies' wings (from Greek pteron, wing; see pet- in Indo-European roots).] |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
aminopterin
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