I am not saying you would confuse corn and wheat, but I have known some people, especially those in Yorkshire get confused.
There are various grades of maize meal, it's called mealie meal in most parts of Africa by the way. White maize meal is the centre of the grain, yellow is the whole grain.
Yellow maize meal porridge makes a nice breakfast dish, white maize meal is eaten with gravey and meat at a typical South African braaivleis.