vbl. sb. [f. APPLE v. + -ING1.] The process of forming an apple or similar growth.
1750. W. Ellis, Mod. Husb., I. ii. 104. Prevent their [seedling potatoes] appling or bottling.
1807. Vancouver, Agric. Devon (1813), 197. The appleing of the potatoe keeps the mould in continual motion.