| a crystalline, slightly water-soluble solid, C13H10N2O4, formerly used as a sedative: if taken during pregnancy, it may cause severe abnormalities in the limbs of the fetus. |

thalidomide tha·lid·o·mide (thə-lĭd'ə-mīd')
n.
A sedative and hypnotic drug that was withdrawn from sale after it was found to cause severe birth defects when taken during pregnancy.
| thalidomide (thə-lĭd'ə-mīd') Pronunciation Key
A drug used to treat leprosy. It was previously prescribed to treat nausea during early pregnancy, but was found to cause severe birth defects, including stunting or absence of the limbs. Chemical formula: , C13H10N2O4. |