Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Either of two viscous liquid esters, C20H28O3 or C21H28O5, occurring naturally in pyrethrum plants and used as insecticides.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin cinis, ciner-, ashes + –in.]

Examples

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