That isn't a word. This might help but, expiation means making amends.
Also, always use 'an' instead of 'a' when the following word starts with a vowel.
a boom that destroys stuff
an act of exploding
the exact definition of orbit is to revolve around, or move in an orbit
The Halifax Explosion happened on december 6, 1917. This explosion was the second biggest man made explosion. The estimate number of victims is not exact but lingers around 2000 people.
resistant to explosions resistant to explosions
No exact number for this question
Depends on your exact definition of a computer.
The definition is inserting the penis into the anus, and pumping in and out.
ice cream
Definition.
nothiiing
Precise, exact
No. D=m/v and no measurement is exact due to uncertainty.
Global Positioning System