No it's a noun.
The verb form is annihilate.
The noun forms of the verb to annihilate are annihilator, annihilation, and the gerund, annihilating.
"Annihilation" by Jeff VanderMeer has for around 195 pages.
Celebration of Annihilation was created in 1996.
Total Annihilation happened in 1997.
No, annihilates is a verb, as in he/she/it annihilates. 'Annihilated' could be used as an adjective, as in 'The Annihilated Self', or 'annihilating', as in 'the annihilating effects of space travel'.
Annihilation of Expectation was created in 2004-11.
Balanced Annihilation
Annihilation of the Wicked was created on 2005-05-23.
Annihilation Earth was created on 2009-12-12.
Total Annihilation - album - was created in 1994.
Annihilation of Civilization was created on 1989-04-03.
Annihilation - novel - was created on 2004-06-01.