http://www.fpl.fs.fed.us/TMU/publications.htm Where wood is always the
subject.

Swingman's description is right on. The parts of the wood which expand most
are those generally lighter colored, softer earlywood areas. Broader the
earlywood areas on the visible surface, more the wood can expand. Latewood,
the dense stuff, much less.

"John" wrote in message
...
I have come across this term in descriptions of wood. Does it refer to
changes with humidity, or something else?