Any of a wide range of electronic music genres.(noun)
Electronic items in general.(noun)
The data trail of an individual on the public internet.(noun)
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Use "electronica" in a sentence
"But, you know -- it's interesting, since the art of song writing seems to have taken a nosedive, I've gone the way of what they call electronica music."
"Jamie Lidell, an Englishman who has spent time on the Berlin electronica scene, bounded onstage wearing a gold-lamé jacket with a gold-tinsel wig."
"I'm going to be talking about electronica from the Japanese doujin and underground communities."