Top Definition
to literally occur at the same time; to occur at equal time intervals. From the Greek root iso.
Johnny: Did you hear about when n0valyfe and zezima clashed for the #1 ranking on LOLrunescape, isochronously?
decent kid: uhh...no.

Johnny: u a noob!
decent kid: the only good part of this conversation was the fact that you used the word "isochronously."
Johnny: u didn't responz to my insult!

decent kid proceeds to shoot Johnny in his cerebellum and give him a good kick in the nuts in an isochronous manner.
by isochronismisms! May 30, 2009

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