Today I learned that the definition of rape is something other than “sex without consent”
What do you mean?
If it did, then “child rape” would mean “sex with a child without consent” but according to the op, there is no such thing as sex with a child, so that can’t be true.
Someone else already explained to you why that’s clearly not what OP meant.
Then you can read my comment as pointing out how the OP worded their post very poorly.