The standard is "likelihood of confusion." so if you call Nitro the other white meat then someone will have to be confused and think you are talking about a me

The standard is "likelihood of confusion." so if you call Nitro the other white meat then someone will have to be confused and think you are talking about a meat product. Also I believe you would have to be using the name in trade(sell a book titled Nitro the other white meat or some such) On the other hand it would not be likely to dilute their TM since generic-ness is usually in reference to a class of products. Nitro not being in the same class should not dilute the name for the meat industry. aka Apple music vs Apple computers.