a. [f. CRACK v. + -ABLE.] Capable of being cracked.
1862. Guardian, 16 April, 1. The fort which can mount the hugest ordnance, and can be so constructed as not to be crackable.
1873. Miss Broughton, Nancy, I. 221. Most of them of a brittle crackable nature.
b. as sb. (in pl.) Things that can be cracked. (nonce-use, after eatables, etc.).
1841. J. T. Hewlett, Parish Clerk, I. 100. Fond o breaking crackables.
Hence Crackability, quality of being crackable.
1810. W. Taylor, in Monthly Mag., 344. The crackability, which is here made the characteristic of this sort of nut.