from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The process of burning.
- n. A chemical change, especially oxidation, accompanied by the production of heat and light.
- n. Violent anger or agitation: Combustion within the populace slowly built up to the point of revolution.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The act or process of burning.
- n. A process where two chemicals are combined to produce heat.
- n. A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.
- n. Violent agitation, tumult.
from the GNU version of the Collaborative International Dictionary of English
- n. The state of burning.
- n. The combination of a combustible with a supporter of combustion, producing heat, and sometimes both light and heat.
- n. Violent agitation; confusion; tumult.
from The Century Dictionary and Cyclopedia
- n. The action of fire on inflammable materials; the act or process of burning.
- n. . Tumult; violent agitation with hurry and noise; inflammatory excitement; confusion; uproar.
- n. In astrology, the state of being combust.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the act of burning something
- n. a process in which a substance reacts with oxygen to give heat and light
- n. a state of violent disturbance and excitement
Middle English, from Late Latin combustiō, combustiōn-, from Latin combustus, past participle of combūrere, to burn up, blend of com-, intensive pref.; see com- and ambūrere, to burn around (amb-, ambi-, ambi- + ūrere, to burn).(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old French combustion, from comburere "to burn", itself from the intensifying prefix com- + the root burere (a faulty sep. of amburere "to burn around", itself from ambi- + urere "to burn, singe"). (Wiktionary)