The phrase "direction of growth" means the path or way in which something is developing or expanding.
Sentences with «direction of growth»
These are indications of campaign momentum, and illustrate the pace and direction of your growth over time. (audiencebloom.com)
The patterns and direction of growth reflect the person's individuality. (religion-online.org)
Let it sit for a bit to «melt» into your pores, and then use cloth strips to remove the sugar and hair by pulling in the opposite direction of growth. (mindbodygreen.com)