Definition of menadione in English:

menadione

noun ˌmɛnəˈdʌɪəʊnˌmenəˈdīˌōn

mass nounMedicine

A synthetic yellow compound related to menaquinone, used to treat haemorrhage.
Chemical formula: C₁₁H₈O₂
Example sentencesExamples
- After absorption, menadione is thought to become alkylated into biologically active isoprenylated menaquinones.
- Hepatoma-bearing rats receiving intraperitoneal injections of menadione (10 mg / 2mL weekly for four weeks) demonstrated an increased survival rate of 60 days compared to 17 days for controls (five of 16 lived longer than controls).
- The K vitamins exist naturally as K 1 in green vegetables and K 2 produced by intestinal bacteria and K 3 is synthetic menadione.
- This medium is prepared twice each week and is complemented with 8% sheep blood, menadione, and gentamicin, making this medium selective for anaerobes.
- Using concentrations that had no effect on cell growth, we found that menadione had no significant effect on recombination under the conditions tested in either the wild-type or BER mutant backgrounds.

Origin

1940s: from me(thyl) + na(phthalene) + the suffix -dione, used in names of compounds containing two carbonyl groups.

Definition of menadione in US English:

menadione

nounˌmenəˈdīˌōn

Medicine

A synthetic yellow compound related to menaquinone, used to treat hemorrhage.
Alternative name: 2-methyl-1,4-naphthoquinone; chemical formula: C₁₁H₈O₂
Also called "vitamin K3" (see vitamin K)
Example sentencesExamples
- This medium is prepared twice each week and is complemented with 8% sheep blood, menadione, and gentamicin, making this medium selective for anaerobes.
- Using concentrations that had no effect on cell growth, we found that menadione had no significant effect on recombination under the conditions tested in either the wild-type or BER mutant backgrounds.
- The K vitamins exist naturally as K 1 in green vegetables and K 2 produced by intestinal bacteria and K 3 is synthetic menadione.
- After absorption, menadione is thought to become alkylated into biologically active isoprenylated menaquinones.
- Hepatoma-bearing rats receiving intraperitoneal injections of menadione (10 mg / 2mL weekly for four weeks) demonstrated an increased survival rate of 60 days compared to 17 days for controls (five of 16 lived longer than controls).

Origin

1940s: from me(thyl) + na(phthalene) + the suffix -dione, used in names of compounds containing two carbonyl groups.

单词	menadione
释义	Definition of menadione in English: menadione noun ˌmɛnəˈdʌɪəʊnˌmenəˈdīˌōn mass nounMedicine A synthetic yellow compound related to menaquinone, used to treat haemorrhage. Chemical formula: C₁₁H₈O₂ Example sentencesExamples After absorption, menadione is thought to become alkylated into biologically active isoprenylated menaquinones. Hepatoma-bearing rats receiving intraperitoneal injections of menadione (10 mg / 2mL weekly for four weeks) demonstrated an increased survival rate of 60 days compared to 17 days for controls (five of 16 lived longer than controls). The K vitamins exist naturally as K 1 in green vegetables and K 2 produced by intestinal bacteria and K 3 is synthetic menadione. This medium is prepared twice each week and is complemented with 8% sheep blood, menadione, and gentamicin, making this medium selective for anaerobes. Using concentrations that had no effect on cell growth, we found that menadione had no significant effect on recombination under the conditions tested in either the wild-type or BER mutant backgrounds. Origin 1940s: from me(thyl) + na(phthalene) + the suffix -dione, used in names of compounds containing two carbonyl groups. Definition of menadione in US English: menadione nounˌmenəˈdīˌōn Medicine A synthetic yellow compound related to menaquinone, used to treat hemorrhage. Alternative name: 2-methyl-1,4-naphthoquinone; chemical formula: C₁₁H₈O₂ Also called "vitamin K3" (see vitamin K) Example sentencesExamples This medium is prepared twice each week and is complemented with 8% sheep blood, menadione, and gentamicin, making this medium selective for anaerobes. Using concentrations that had no effect on cell growth, we found that menadione had no significant effect on recombination under the conditions tested in either the wild-type or BER mutant backgrounds. The K vitamins exist naturally as K 1 in green vegetables and K 2 produced by intestinal bacteria and K 3 is synthetic menadione. After absorption, menadione is thought to become alkylated into biologically active isoprenylated menaquinones. Hepatoma-bearing rats receiving intraperitoneal injections of menadione (10 mg / 2mL weekly for four weeks) demonstrated an increased survival rate of 60 days compared to 17 days for controls (five of 16 lived longer than controls). Origin 1940s: from me(thyl) + na(phthalene) + the suffix -dione, used in names of compounds containing two carbonyl groups.
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