We found 2 dictionaries that define the word self-annihilations:

General (2 matching dictionaries)

1. self-annihilations: Merriam-Webster
2. self-annihilations: Dictionary.com

(Note: See self-annihilation as well.)

Definitions from Wiktionary (self-annihilation) ▸ noun:  Annihilation by one's own act. ▸ Also see self-annihilation ▸ Words similar to self-annihilations ▸ Usage examples for self-annihilations ▸ Idioms related to self-annihilations ▸ Wikipedia articles (New!) ▸ Popular adjectives describing self-annihilations ▸ Words that often appear near self-annihilations ▸ Rhymes of self-annihilations ▸ Invented words related to self-annihilations