Learned a new word

Macrosomic - the medical term for a 'big baby' which is any baby that weighs more than 8lbs 8oz. Tobes was macrosomic at 8lbs 10.5oz and it looks like Cupcake probably will be too. 8lbs 8oz doesn't seem that big to me. I know women who've had babies up to 11lbs. I wonder if there's another word for really big babies? Suggestions on a postcard please.