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piperonal

American  
[pi-per-uh-nal, pahy-, pip-er-uh-] / pɪˈpɛr əˌnæl, paɪ-, ˈpɪp ər ə- /

noun

Chemistry.
  1. a white, crystalline, water-insoluble aldehyde, C 8 H 6 O 3 , which darkens on exposure to light: used chiefly in perfumery and organic synthesis.


piperonal British  
/ ˈpɪpərəʊˌnæl /

noun

  1. Also called: heliotropin.  a white fragrant aldehyde used in flavourings, perfumery, and suntan lotions. Formula: C 8 H 6 O 3

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of piperonal

First recorded in 1865–70; piper(ine) + -one + -al 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Piperonal, an aldehyde closely allied to vanillin, is used in perfumery under the name of heliotropin and is prepared from oil of sassafras and oil of camphor.

From Project Gutenberg