anaclasticadj.n.

1796 C. Hutton Math. & Philos. Dict. Anaclastic Curves, a name given by M. de Mairan to certain apparent curves formed at the bottom of a vessel full of water..or the vault of the heavens, seen by refraction through the atmosphere.

1879 New Sydenham Soc. Lexicon Anaclastic, applied to that point where a luminous ray is refracted.

1753 Chambers's Cycl. Suppl. Anaclastic glasses are a low kind of phials with flat bellies, resembling inverted funnels, whose bottoms are very thin..and..a little convex. But upon applying the mouth to the orifice, and gently..sucking out the air, the bottom gives way with a horrible crack, and of convex becomes concave. On the contrary upon.. breathing gently into the orifice, the bottom with no less noise bounds back to its former place.

1815 Encycl. Brit. II. 166 Anaclastic Glasses, a kind of sonorous phials or glasses, chiefly made in Germany.

1889 in Cent. Dict.

1912 J. W. White Verse Greek Comedy viii. 185 Normal and anaclastic metres may correspond in strophe and antistrophe.

1949 Oxf. Classical Dict. 566/2 The hypodochmius, or ‘anaclastic’ dochmius, inverts the first two elements, –––.

1957 W. Beare Latin Verse vii. 83 Ionic Verse (a minore ––, a maiore ––)..is..highly emotional, particularly in its ‘anaclastic’ or ‘broken’ form (––––).

1696 E. Phillips New World of Words (ed. 5) Anaclatics, a part also of Opticks which by the Lines of the Stars, and other visual Objects, refracted in a medium of a different thickness, measures their figures, magnitudes, distances, etc. [So spelt and defined in Bailey, Johnson, Ash.]

1789 G. S. Howard New Royal Encycl. Anaclastics.