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Entry 2 senses Webster, 1913

Deflagration

· Def·la·gra·tion · IPA /ˌdɛfləˈɡɹeɪʃən/
01 n. A burning up; conflagration.
  1. 1.
    A burning up; conflagration.
  2. 2.
    The act or process of deflagrating.(Chem.)