Ageratum Definition

ăjə-rātəm
noun
Any of various tropical American plants of the genus Ageratum in the composite family, especially A. houstonianum, cultivated for their fluffy blue, purple, pink, or white flower heads.
American Heritage
Any of several plants (genus Ageratum) of the composite family with small, thick heads of usually bluish flowers: widely used as border plants in gardens.
Webster's New World
Any of several other plants having flower clusters similar to those of ageratum.
American Heritage

(uncountable) Any of the genus Ageratum of tropical American herbs, annuals and perennials, from the sunflower family Asteraceae, tribe Eupatorieae; they are sometimes used in floral displays.

Wiktionary
Synonyms:
  • mist-flower
  • mistflower
  • Conoclinium coelestinum
  • Eupatorium coelestinum

Other Word Forms of Ageratum

Noun

Singular:
ageratum
Plural:
ageratums

Origin of Ageratum

  • New Latin Agēratum genus name from Greek agēraton a plant (perhaps a type of rosemary) neuter of agēratos ageless a- without a–1 gēras old age gerə-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From the genus name.

    From Wiktionary

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ageratum