Definition of chromophore - an atom or group whose presence is responsible for the colour of a compound. Definition of chromophore - an atom or group whose presence is responsible for the colour of a compound.
El Sereno, Los Angeles. El Sereno is a Los Angeles City neighborhood in the Eastside Los Angeles region of the County of Los Angeles, California. El Sereno as mapped by the Los Angeles Times. Cal State Los Angeles is in the lower right corner.
El Segundo. 1  is a city in the South Bay region of Los Angeles County. 2  The neighboring communities are Del Aire, Hawthorne, Manhattan Beach, Playa del Rey and Westchester. 3  El Segundo is one of the 272 neighborhoods in Mapping L.A., The Timesâ resource for crime, neighborhoods, demographics and schools. This page was created by the Data Desk, a team of reporters and Web developers in downtown L.A.