from
The Collaborative International Dictionary of English v.0.48
Baker \Bak"er\, n. [AS. b[ae]cere. See {Bake}, v. t.]
1. One whose business it is to bake bread, biscuit, etc.
[1913 Webster]
2. A portable oven in which baking is done. [U.S.]
[1913 Webster]
{A baker's dozen}, thirteen.
{Baker foot}, a distorted foot. [Obs.] --Jer. Taylor.
{Baker's itch}, a rash on the back of the hand, caused by the
irritating properties of yeast.
{Baker's salt}, the subcarbonate of ammonia, sometimes used
instead of soda, in making bread.
[1913 Webster]