ignitableignitibleadj.

1646 Sir T. Browne Pseudodoxia Epidemica ii. i. 52 Such bodies only strike fire as have a sulphur or ignitible parts within them.

1823 J. Badcock Domest. Amusem. 64 The explosion of an ignitible substance.

1851 Fraser's Mag. 44 497 Some dense street of ignitable warehouses.

1860 J. Whiteside Italy xi. 106 Two piles of wood, mixed with ignitable materials.

1880 A. W. Kinglake Invasion of Crimea (ed. 4) VI. viii. 174 To find ignitible substances.

1809 European Mag. 55 20 Accident..from the ignitability of the materials.

1925 H. F. Coward & R. V. Wheeler Ignition of Firedamp 20 The ignitibility of any mixture by an electric spark is inversely proportional to the rate of movement of flame in that mixture.

1925 H. F. Coward & R. V. Wheeler Ignition of Firedamp 21 The relative ignitibilities of a wide range of inflammable methane-air mixtures.

1953 R. E. Kirk & D. F. Othmer Encycl. Chem. Technol. XI. 326 Ignition temperature, ignitibility, stability, and hygroscopicity are important in determining the certainty of functioning [of pyrotechnic compositions].

1966 Lancet 24 Dec. 1404/1 Comparing circumstances in pure oxygen at 1 atmosphere with those in air at the same pressure one finds that there is a thousandfold increase in the ignitability of most substances.