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 Cajon (/ÉlkÉËhoÊn/; Spanish: [elkaËxon]) is a city in San Diego County, California, United States. In a valley surrounded by mountains, the city has acquired the nickname of The Big Box.. Its name originated similarly, from the Spanish phrase el cajÃ³n, which means the box or the drawer..