radical - an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; in the body free radicals are high-energy particles that ricochet wildly and damage cells.
The Metropolitan Museum of Art, colloquially the Met, located in New York City, is the largest art museum in the United States and among the most visited art museums in the world. Its permanent collection contains more than two million works, divided among seventeen curatorial departments.
The New York City Police Department today announced street closures and anticipated traffic delays relating to the United Nations General Assembly. The United Nations is located at 1st Avenue and 42nd Street. The use of public transportation for the duration of the General Assembly is highly encouraged.