Definify.com

Webster 1913 Edition

‖

(ȧ-jĕr′ȧ-tŭm or ăjˊẽr-ā′tŭm)

rop.

Noun.

[NL., fr. Gr.

ἀγήρατον

a sort of plant;

ἀ

priv. +

γήρασ

old age.]

(Bot.)

A genus of plants, one species of which (

Ageratum Mexicanum

) has lavender-blue flowers in dense clusters.

See also: Ageratum

ageratum ‎(plural ageratums)

(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.

any of the genus Ageratum of tropical American herbs