(astronomy) a graphical butterfly-shaped representation of the sunspot density on the solar disc in the 11-year sunspot cycle


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  • Butterfly-effect

    a cumulatively large effect that a very small natural force may produce over a period of time. noun the idea, used in chaos theory, that a very small difference in the initial state of a physical system can make a significant difference to the state at some later time noun Word Origin

  • Butterfly-flower

    Also called Jerusalem date. a shrub or small tree, Bauhinia monandra, of French Guiana, having clusters of pink, purple-streaked flowers. schizanthus. Historical Examples Omphalos Philip Henry Gosse

  • Butterfly-kiss

    butterfly kiss Historical Examples A harum-scarum schoolgirl Angela Brazil Letters of Two Brides Honore de Balzac The Wishing Moon Louise Elizabeth Dutton Red Pottage Mary Cholmondeley Down and Out in the Magic Kingdom Cory Doctorow

  • Butterfly-nut

    wing nut. noun another name for wing nut

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