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ageratum

[aj-uh-rey-tuh m, uh-jer-uh-] /ˌædʒ əˈreɪ təm, əˈdʒɛr ə-/
noun
1.
any of several composite plants of the genus Ageratum, especially A. houstonianum, having heart-shaped leaves and small, dense, blue, lavender, or white flower heads, often grown in gardens.
2.
any of various other composite plants, as the mistflower, having blue or white flowers.
Origin of ageratum
1560-1570
1560-70; < New Latin; Latin agēraton < Greek agḗraton, neuter of agḗratos unaging, equivalent to a- a-6 + gērat- (stem of gêras) old age + -os adj. suffix
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for ageratum
Historical Examples
  • It is easily grown, and makes a fine second-row plant for a border, contrasting well with Browallia or ageratum.

  • The soft blue tufts of the ageratum were on each side continually.

    Bonaventure George Washington Cable
  • ageratum, candytuft and dwarf nasturtiums are good for the purpose.

  • I should think a low-growing plant like ageratum would be pretty in a vase of that sort.

    Ethel Morton's Enterprise Mabell S.C. Smith
  • "We've decided on ageratum for the border and larkspur and monkshood for the back," said Ethel Brown.

    Ethel Morton's Enterprise Mabell S.C. Smith
  • ageratum, with its delicate lavender-blue flowers, can be made extremely attractive in combination with yellow Coleus.

    Amateur Gardencraft Eben E. Rexford
  • ageratum is lovely for edging beds of pink Geraniums, its soft lavender tones being in perfect harmony with their color.

    Amateur Gardencraft Eben E. Rexford
  • This was money enough to buy seeds of ageratum, zinnia, dwarf nasturtium, California poppy and verbena besides some others.

  • The ageratum is a lovely plant for a low bed, with its great masses of soft lavender flowers.

    Amateur Gardencraft Eben E. Rexford
British Dictionary definitions for ageratum

ageratum

/ˌædʒəˈreɪtəm/
noun
1.
any tropical American plant of the genus Ageratum, such as A. houstonianum and A. conyzoides, which have thick clusters of purplish-blue flowers
Word Origin
C16: New Latin, via Latin from Greek agēraton that which does not age, from a-1 + gērat-, stem of gēras old age; the flowers of the plant remain vivid for a long time
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
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