appling,vbl.n.|ˈæplɪŋ| [f. apple v. + -ing1.] The process of forming an apple or similar growth. 1750W. Ellis Mod.Husb. I. ii. 104 Prevent their [seedling potatoes] appling or bottling.1807Vancouver Agric. Devon (1813) 197 The appleing of the potatoe keeps the mould in continual motion.