Using a dictionary definition to affirm whether or not someone is a Christian is not a solid argument.
Mormon baptisms are not recognized by any other “mainstream” Christian denomination, just like the baptisms of those other denoms are not recognized by the mormons.
So, if the mormons were truly Christians, it stands to reason that the baptisms would be recognized, right?
I don’t care,
I care about us, our behavior, our souls
Look at yourself