detonations

detonation

[det-n-ey-shuhn]
noun
1.
the act of detonating.
2.
an explosion.
3.
Machinery. the premature spontaneous burning of a fuel–air mixture in an internal-combustion engine due to the high temperature of air compressed in a cylinder.

Origin:
1670–80; < Medieval Latin dētonātiōn- (stem of dētonātiō), equivalent to Latin dētonāt(us) (see detonate) + -iōn- -ion

detonative, adjective
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World English Dictionary
detonation (ˌdɛtəˈneɪʃən)
 
n
1.  an explosion or the act of exploding
2.  the spontaneous combustion in an internal-combustion engine of part of the mixture before it has been reached by the flame front, causing the engine to knock
3.  physics rapid combustion, esp that occurring within a shock wave
 
detonative
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

detonation
1670s, "explosion accompanied by loud sound," from Fr. détonation, from M.L. detonationem, from L. detonare "to release one's thunder, roar out," from de- "down" + tonare "to thunder" (see thunder). Sense of "act of causing to explode" (mid-18c.) developed in French.
Online Etymology Dictionary, © 2010 Douglas Harper
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