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Dr. Dre Trashes Estranged Wife in New Song ... Calls Her 'Greedy Bitch'

Dr. Dre seems to be letting out his frustrations over his pending divorce with Nicole Young in his music -- and he's not being very subtle about it either.

A new track was previewed Monday night by DJ Silk, which features Dre and Aftermath pal KXNG Crooked. Dre drops some explicit lyrics about his estranged wife and their nasty divorce proceedings.

Dre raps ... "Trying to kill me with them lies and that perjury // I see you trying to f*** me while I'm in surgery // In ICU death bed on some money s*** // Greedy bitch take a pic // Girl you know how money get."

As we've reported ... Dre went right back to the studio after being released from his recent health scare -- suffering what could've been a fatal brain aneurysm.

Silk only played a few bars, so it's unclear if Dre makes any other references to the divorce or Nicole on the track.

Dre and Nicole's legal war hasn't seen a pause whatsoever since she filed for divorce last summer -- most recently she filed a motion asking for access to their home amid suspicions of a mistress, and was granted temporary spousal support ... a one-time payment of $2 mil.

Meanwhile, Dre's accused her of siphoning funds from one of their business accounts -- which is being investigated by law enforcement. Safe to say, it's been nasty, and you can hear it in Dre's verse.

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