n. The setting or composition of written material into type.
the GNU version of the Collaborative International Dictionary of English
n. The act or art of setting type.
The Century Dictionary and Cyclopedia
n. The act or process of setting or combining types in proper order for printing. It is usually done by picking up each type from an exposed case, and arranging the types so collected in a composing-stick in lines of even length.
Word Usage
"But I didn’t know anything about printing and I’d never even heard the word typesetting before, so the first thing I had to do was some research."