Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any terpene formed from three isoprene units, and having fifteen carbon atoms; includes several plant pigments such as the flavones.

from The Century Dictionary and Cyclopedia

  • n. The class name applied, in organic chemistry, to hydrocarbons of the formula C15H24, possessing a closed-chain structure. The term is derived from the fact that the terpenes have the formula C10H16.

Etymologies

sesqui- (“one and a half”) +‎ terpene; by comparison with a monoterpene, which has two isoprene units. (Wiktionary)

Examples

  • Yet the more than 500 amino acids that make up the chemical factories in each-known as sesquiterpene synthases-are nearly identical to each other, with very minor differences accumulated over approximately several million years of evolutionary change.

    PhysOrg.com - latest science and technology news stories

  • The activity of the sesquiterpeneindoles appears to be due to the sesquiterpene side chain and not the indole moiety.

    Chapter 7

  • The presence of an a, b-unsaturated alcohol moiety on the sesquiterpene side chain is also essential for the activity (Nkunya et al., 1990a).

    Chapter 7

  • A sample of the essential oil extracted from the rhizomes was found to have the following characteristics: SG (30°C) 0.9724 and ND (30°C) 1.5002, and to contain d-alpha-pinene 1.5 per cent; d-camphene 3.5 per cent; cineol 9.6 per cent; a-camphor 4.2 per cent; d-borneol 1.5 per cent; sesquiterpenes 10 per cent; sesquiterpene alcohols 48 per cent.

    Chapter 28

  • In the perfumery and sesquiterpene domain the total syntheses of nerolidol and farnesol were carried through.

    Leopold Ruzicka - Biography

  • J. (1963) Estafiatin, a new sesquiterpene lactone isolated from Artemisia mexicana (Willd.).

    Chapter 5

  • But by the 1970s it was known that the lethal chemical, first called qinghaosu and now artemisinin, had a structure never seen before in nature: In chemical terms, it is a sesquiterpene lactone with a peroxide bridge.

    The Seattle Times

  • The main components in the dandelion herb, which account for its medical help for the liver and digestive system, are the compounds sesquiterpene lactones of the eudesmanolide and germacranolide types.

    EzineArticles

  • The pea aphid, Acyrthosiphon pisum Harris, (Homoptera: Aphididae) releases the volatile sesquiterpene (E) - β-farnesene (EBF) when attacked by a predator, triggering escape responses in the aphid colony.

    ScienceBlogs Channel : Life Science

  • Cyperone, a sesquiterpene that benefits the heart and blood pressure.

    Wil's Ebay E-Store

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.