C10H18O

C10H18O
eucalyptol eu`ca*lyp*tol, n. [eucalyptus + L. oleum oil.] (Chem.) A volatile, terpenelike oil ({C10H18O}), which is the main constituent of the oil of eucalyptus. It has cockroach repellent activity and is used as a flavoring aid in pharmaceuticals. Chemically it is 1,3,3-trimethyl-2-oxabicyclo-[2,2,2]-octane. --MI11

Syn: cineole, cajeputol. [1913 Webster +PJC]

Note: In the 1913 Webster eucalytpol was defined as an oil ``consisting largely of cymene''. Cymene (isopropyltoluene, {C10H14}) differs from that of the substance currently called eucalyptol, in having an unsaturated ring and no oxygen. Para-cymene does occur in eucalyptus oil as well as some other essential oils. [PJC] ||


The Collaborative International Dictionary of English. 2000.

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  • C10H18O — geraniol ge*ra ni*ol, n. [See {Geranium}.] (Chem.) A terpene alcohol ({C10H18O}) which constitutes the principal part of the oil of palmarosa and the oil of rose. Chemically it is 3,7 Dimethyl 2,6 octadien 1 ol. It has a sweet rose odor. MI11… …   The Collaborative International Dictionary of English

  • C10H18O — Camphor Cam phor (k[a^]m f[ e]r), n. [OE. camfere, F. camphre (cf. It. canfora, Sp. camfora, alcanfor, LL. canfora, camphora, NGr. kafoyra ), fr. Ar. k[=a]f[=u]r, prob. fr. Skr. karp[=u]ra.] 1. A tough, white, aromatic resin, or gum, obtained… …   The Collaborative International Dictionary of English

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