Is there a way to turn off the word wrap on the x-axis labels?

I have labels that are relatively long 2-3 words each, but I am not able to
find a way to keep the text from wrapping. When a label wraps, it tends to
overlap the next labels.

I have plenty of room, but when I resize the chart, at seems to size of the
x-axis label area moves proportionally. Can this area be enlarged?