ageratum

[ aj-uh-rey-tuh m, uh-jer-uh- ]
/ ˌædʒ əˈreɪ təm, əˈdʒɛr ə- /

noun

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.
any of various other composite plants, as the mistflower, having blue or white flowers.

Origin of ageratum

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

Words nearby ageratum

agential, agentival, agentive, agentry, ager, ageratum, agesilaus ii, ageusia, aggadah, agger, aggers

Example sentences from the Web for ageratum

British Dictionary definitions for ageratum

ageratum
/ (ˌædʒəˈreɪtəm) /

noun

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 for ageratum

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