black box
2black box
adjDefinition of BLACK BOX
: being or containing a warning of a serious or life-threatening side effect (as stroke or muscle damage) that is highlighted by a black border on a prescription drug's label or accompanying literature
First Known Use of BLACK BOX
1988
Learn More About BLACK BOX
Browse
Next Word in the Dictionary: blackboy
Previous Word in the Dictionary: black–bottom
All Words Near: black box
Previous Word in the Dictionary: black–bottom
All Words Near: black box
Seen & Heard 
What made you want to look up black box? Please tell us where you read or heard it (including the quote, if possible).
