Definition of triterpene in English:

triterpene

nountrʌɪˈtəːpiːntrīˈtərpēn

Chemistry

Any of a group of terpenes found in plant gums and resins, having unsaturated molecules based on a unit with the formula C₃₀H₄₈.
〔化〕三萜（烯）
Example sentencesExamples
- Cucurbitacins are oxygenated tetracyclic triterpenes that have been shown to have emetic, antineoplastic, and cytotoxic effects on herbivores, resulting in feeding and oviposition deterrence and reduced growth of consumers.
- The leaves of the plant contain alkaloids, glycosides, triterpenes, tannins, volatile bases and probably other substances.
- Many of its medicinal effects are attributed to the triterpene glycosides known as ginsenosides (saponins).
- Terpenoids are classified according to the number of isoprene units they contain: monoterpenes, sesquiterpenes, diterpenes, triterpenes, tetraterpenes and polyterpenes.
- Some of the triterpenes fractions have been thought to act as in vivo precursors to steroids.

Derivatives

triterpenoid

adjective & noun

Chemistry

White, red, and tree peony contain glycosides (most notably paeoniflorin), flavonoids, proanthocyanidins, tannins, terpenoids, triterpenoids, and complex polysaccharides that may all contribute to its medicinal effects.
Example sentencesExamples
- Relative portions of total aliphatics and cyclic triterpenoids in the wax of intact fruits and of enzymatically isolated cuticles.
- Indeed, triterpenoid saponins with an acyl side chain have been shown to increase membrane permeability of endothelial cells, whereas those lacking the side chain did not.
- The resins produced by these glands have been shown to consist of a mixture of phenolics and steroidal triterpenoids; they act as important deterrents against mammalian herbivores, especially hares.
- Structurally, avicins are part of a greater family of molecules called triterpenoid saponins.

Definition of triterpene in US English:

triterpene

nountrīˈtərpēn

Chemistry

Any of a group of terpenes found in plant gums and resins, having unsaturated molecules based on a unit with the formula C₃₀H₄₈.
〔化〕三萜（烯）
Example sentencesExamples
- Many of its medicinal effects are attributed to the triterpene glycosides known as ginsenosides (saponins).
- Terpenoids are classified according to the number of isoprene units they contain: monoterpenes, sesquiterpenes, diterpenes, triterpenes, tetraterpenes and polyterpenes.
- The leaves of the plant contain alkaloids, glycosides, triterpenes, tannins, volatile bases and probably other substances.
- Cucurbitacins are oxygenated tetracyclic triterpenes that have been shown to have emetic, antineoplastic, and cytotoxic effects on herbivores, resulting in feeding and oviposition deterrence and reduced growth of consumers.
- Some of the triterpenes fractions have been thought to act as in vivo precursors to steroids.

词汇	triterpene
释义	Definition of triterpene in English: triterpene nountrʌɪˈtəːpiːntrīˈtərpēn Chemistry Any of a group of terpenes found in plant gums and resins, having unsaturated molecules based on a unit with the formula C₃₀H₄₈. 〔化〕三萜（烯） Example sentencesExamples Cucurbitacins are oxygenated tetracyclic triterpenes that have been shown to have emetic, antineoplastic, and cytotoxic effects on herbivores, resulting in feeding and oviposition deterrence and reduced growth of consumers. The leaves of the plant contain alkaloids, glycosides, triterpenes, tannins, volatile bases and probably other substances. Many of its medicinal effects are attributed to the triterpene glycosides known as ginsenosides (saponins). Terpenoids are classified according to the number of isoprene units they contain: monoterpenes, sesquiterpenes, diterpenes, triterpenes, tetraterpenes and polyterpenes. Some of the triterpenes fractions have been thought to act as in vivo precursors to steroids. Derivatives triterpenoid adjective & noun Chemistry White, red, and tree peony contain glycosides (most notably paeoniflorin), flavonoids, proanthocyanidins, tannins, terpenoids, triterpenoids, and complex polysaccharides that may all contribute to its medicinal effects. Example sentencesExamples Relative portions of total aliphatics and cyclic triterpenoids in the wax of intact fruits and of enzymatically isolated cuticles. Indeed, triterpenoid saponins with an acyl side chain have been shown to increase membrane permeability of endothelial cells, whereas those lacking the side chain did not. The resins produced by these glands have been shown to consist of a mixture of phenolics and steroidal triterpenoids; they act as important deterrents against mammalian herbivores, especially hares. Structurally, avicins are part of a greater family of molecules called triterpenoid saponins. Definition of triterpene in US English: triterpene nountrīˈtərpēn Chemistry Any of a group of terpenes found in plant gums and resins, having unsaturated molecules based on a unit with the formula C₃₀H₄₈. 〔化〕三萜（烯） Example sentencesExamples Many of its medicinal effects are attributed to the triterpene glycosides known as ginsenosides (saponins). Terpenoids are classified according to the number of isoprene units they contain: monoterpenes, sesquiterpenes, diterpenes, triterpenes, tetraterpenes and polyterpenes. The leaves of the plant contain alkaloids, glycosides, triterpenes, tannins, volatile bases and probably other substances. Cucurbitacins are oxygenated tetracyclic triterpenes that have been shown to have emetic, antineoplastic, and cytotoxic effects on herbivores, resulting in feeding and oviposition deterrence and reduced growth of consumers. Some of the triterpenes fractions have been thought to act as in vivo precursors to steroids.
随便看	microworlds microxea microzoan microzoon microzooplankton microzyme micrurgical micrurgical micrurgy mics mictic micturate micturating micturition micturition micturitions mid mid- mid-afternoon mid-afternoons mid-age mid-aged mid-air Mid-America Mid-American