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  1. Carbon Monoxide Fact Sheet | CPSC.gov

    What is carbon monoxide (CO) and how is it produced? Carbon monoxide (CO) is a deadly, colorless, odorless, poisonous gas. It is produced by the incomplete burning of various fuels, including coal, …

  2. What is carbon monoxide? | US EPA

    Nov 13, 2025 · Carbon monoxide (CO) is a colorless, practically odorless, and tasteless gas or liquid. It results from incomplete oxidation of carbon in combustion. Burns with a violet flame. Slightly soluble …

  3. CO Definition & Meaning - Merriam-Webster

    What does the abbreviation CO stand for? Meaning: company. How to use co in a sentence.

  4. CO - Wikipedia

    Look up co, -co, c/o, care of, or co- in Wiktionary, the free dictionary.

  5. CO Definition & Meaning | Dictionary.com

    The prefix co- now productively forms new words from bases beginning with any sound (co-conspirator; co-manage; coseismic ), sometimes with the derived sense “auxiliary, subsidiary” (coenzyme; copilot …

  6. CO. definition in American English | Collins English Dictionary

    Definition of 'Co.' Co. Co. is used as an abbreviation for company when it is part of the name of an organization.

  7. CO- | definition in the Cambridge English Dictionary

    CO- meaning: 1. together; with: 2. abbreviation for company (= business): 3. written abbreviation for county…. Learn more.

  8. CO - What does CO stand for? The Free Dictionary

    Looking for online definition of CO or what CO stands for? CO is listed in the World's most authoritative dictionary of abbreviations and acronyms.

  9. Abbreviations and acronyms dictionary

    The World's most comprehensive professionally edited abbreviations and acronyms database All trademarks/service marks referenced on this site are properties of their respective ow

  10. CO - definition of CO by The Free Dictionary

    The prefix co-, with the sense “joint, jointly,” now forms new words from bases beginning with any sound (cochair; cogeneration; costar; coworker), sometimes with the derived sense “auxiliary” (coenzyme; …