It's a pretty cool little series. I just ignored it when it came on WB at first though. :P assumed it was some kids show. Then one day sittin around cheefin on my bong I watched it and it was pretty cool.
An alchemist is a person who condors up spells with an Alchemy Bowl. Helbreath, Romeo & Juliet >.>, Final Fantasy anyone?
Anyhow, you mispelled Alchemist.
Think chemistry, using magic, mAgicaLCHEMISTry!
>.> An Alchemist is anyone who breaks down structures on a molecular level or the vise versa.
So, basicly alchemist are the guys who make most of the stuff around you, such as plastics or synthetic materials.
I doubted the show at first writing it off as a kids show from WB and such but its actually a pretty decent anime.
And the younger brother doesn't "Wear" full metal armor. He "IS" full metal. He lost most of his body and his brother lost his arm in an attempt to bring there mother back to life. So his brother sacrificed his leg inorder to transfer his little brother soul into a full metal suit.
Anyways its a pretty good show I recomend watching it.