double bond
noun
: a chemical bond in which two pairs of electrons are shared by two atoms in a molecule compare single bond, triple bond
Example Sentences
Recent Examples on the Web The chemical structure of Delta-8 THC is almost identical to delta-9 THC, with the exception of where the double bond is on the chain of carbon atoms. 
The Salt Lake Tribune, 4 May 2022 The chemical structure of Delta-8 THC is almost identical to that of delta-9 THC, with the exception of the position of the double bond on the chain of carbon atoms. The Salt Lake Tribune, 8 May 2022 The chemical structure of Delta-8 THC is very similar to delta-9 THC, except for the position of the double bond on the chain of carbon atoms. The Salt Lake Tribune, 27 Apr. 2022 Namely, while Delta-9 has what is known as a double bond on its ninth carbon atom, Delta-8 has one of its double bonds on the eighth — hence the names. Molly Longman, refinery29.com, 12 Aug. 2021 But that modest change allows Z to form a triple hydrogen bond with T, which is more stable than the double bond that holds together A-T. Quanta Magazine, 12 July 2021 All that separates them is the location of a double bond, found on the eighth carbon in delta-8 THC and the ninth carbon in delta-9. Kaitlin Sullivan, NBC News, 28 June 2021 Incorporating his innovative use of aldehydes, which are organic compounds where a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom to form the carbonyl group. Allyson Portee, Forbes, 16 Apr. 2021 In recent years investigators have developed photocatalysts that break the resistant double bond between carbon and oxygen in carbon dioxide. Javier Garcia Martinez, Scientific American, 10 Nov. 2020 See More
The Salt Lake Tribune, 4 May 2022 The chemical structure of Delta-8 THC is almost identical to that of delta-9 THC, with the exception of the position of the double bond on the chain of carbon atoms. The Salt Lake Tribune, 8 May 2022 The chemical structure of Delta-8 THC is very similar to delta-9 THC, except for the position of the double bond on the chain of carbon atoms. The Salt Lake Tribune, 27 Apr. 2022 Namely, while Delta-9 has what is known as a double bond on its ninth carbon atom, Delta-8 has one of its double bonds on the eighth — hence the names. Molly Longman, refinery29.com, 12 Aug. 2021 But that modest change allows Z to form a triple hydrogen bond with T, which is more stable than the double bond that holds together A-T. Quanta Magazine, 12 July 2021 All that separates them is the location of a double bond, found on the eighth carbon in delta-8 THC and the ninth carbon in delta-9. Kaitlin Sullivan, NBC News, 28 June 2021 Incorporating his innovative use of aldehydes, which are organic compounds where a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom to form the carbonyl group. Allyson Portee, Forbes, 16 Apr. 2021 In recent years investigators have developed photocatalysts that break the resistant double bond between carbon and oxygen in carbon dioxide. Javier Garcia Martinez, Scientific American, 10 Nov. 2020 See More Word History
First Known Use
1889, in the meaning defined above
Medical Definition
double bond
noun
: a chemical bond in which two pairs of electrons are shared by two atoms in a molecule and which is usually represented in chemical formulas by two lines (as in the formula for ethylene H2C=CH2) compare triple bond see unsaturated sense b