[ad. F. frangibilité, f. frangible see next and -ITY.] The quality of being frangible or breakable.
1783. C. J. Fox, Sp. E. India Bills, 1 Dec. Sp. (1815), II. 240. He allows the frangibility of charters, when absolute occasion requires it, and admits that the charter of the company should not prevent the adoption of a proper plan for the future government of India, if a proper plan can be achieved upon no other terms.
1816. P. Cleaveland, Mineralogy, 55. Frangibility. This property can be described only in general terms; or by comparing one mineral with another in this respect.
a. 1835. J. MacCulloch, Proofs Attrib. God (1837), II. 454. [Steel] will maintain nearly the same tenacity, or strength under a frangibility which yields to the slightest impulse.