Thalidomide is an infamous teratogen. Women can be exposed to this substance while trying to control nausea during pregnancy. Thalidomide was given (mostly in the late fifties) as a medication to control the nausea (it was removed from the market in 1961). Thalidomide causes severe malformation risks to a developing fetus.
adjective. The definition of naive is being immature, unaware or overly trusting. An example of naive is someone who believes that the moon is made of cheese because their mother said it was.
verb (used with object) 1. to pay no attention or too little attention to; disregard or slight: The public neglected his genius for many years. 2. to be remiss in the care or treatment of: to neglect one's family; to neglect one's appearance. 3. to omit, through indifference or carelessness: to neglect to reply to an invitation.