1. internal combustion

noun. The combustion of fuel inside a cylinder (as in an internal-combustion engine).
Synonyms
combustion burning
Antonyms
unimportant
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2. internal-combustion engine

noun. A heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine.
Synonyms
four-stroke engine motor vehicle force feed rotary engine valve-in-head engine diesel motor diesel radial engine reciprocating engine lubricating system outboard motor gas engine poppet valve diesel engine self-starter petrol engine outboard pressure-feed lubricating system pressure feed block automotive vehicle engine block gasoline engine motorboat ICE powerboat force-feed lubricating system cylinder block four-stroke internal-combustion engine supercharger heat engine poppet
Antonyms
inboard free unclog natural object unstuff

3. combustion

noun. (kəmˈbʌstʃən) A process in which a substance reacts with oxygen to give heat and light.
Synonyms
oxidation deflagration flaming burning internal combustion flame fire oxidisation oxidization
Antonyms
cold bore hire calmness
Etymology
combustion (English)
combustion (Old French (842-ca. 1400))
combustio (Latin)
comburere (Latin)

4. combustion

noun. (kəmˈbʌstʃən) The act of burning something.
Synonyms
firing kindling ignition inflammation burning incendiarism arson incineration change of integrity fire-raising lighting
Antonyms
unexciting exciting unimportant dark mitigated
Etymology
combustion (English)
combustion (Old French (842-ca. 1400))
combustio (Latin)
comburere (Latin)

5. combustion

noun. (kəmˈbʌstʃən) A state of violent disturbance and excitement.
Synonyms
tumult garboil uproar tumultuousness
Etymology
combustion (English)
combustion (Old French (842-ca. 1400))
combustio (Latin)
comburere (Latin)

6. internal

adjective. (ˌɪnˈtɝːnəl) Happening or arising or located within some limits or especially surface.
Synonyms
interior inner inside internecine spatial relation position intrinsic
Antonyms
external outside exterior outdoor coastal
Etymology
internal (English)
internalis (Latin)

7. internal

adjective. (ˌɪnˈtɝːnəl) Occurring within an institution or community.
Synonyms
intragroup intramural
Antonyms
extramural centrality outwardness
Etymology
internal (English)
internalis (Latin)

8. internal

adjective. (ˌɪnˈtɝːnəl) Inside the country.
Synonyms
interior national domestic home
Antonyms
foreign outdoors outwardly bloodless interior
Etymology
internal (English)
internalis (Latin)

9. internal

adjective. (ˌɪnˈtɝːnəl) Located inward.
Synonyms
inner interior inward
Antonyms
outward peripheral outer inclusive
Etymology
internal (English)
internalis (Latin)

10. internal

adjective. (ˌɪnˈtɝːnəl) Innermost or essential.
Synonyms
intimate intrinsical inner intrinsic
Antonyms
extrinsic inner posteriority marginality anterior
Etymology
internal (English)
internalis (Latin)
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