[], (Noun)

Definitions:
- Any of various flowering plants constituting the genus Ageratum (family Asteraceae (Compositae)), native chiefly to tropical America; especially any of the many cultivated varieties of A. houstonianum (formerly A. mexicanum) commonly grown in gardens for their clusters of pink, purple, or blue flowers.


Phrases:

Origin:
mid 16th century (in an earlier sense). Originally from classical Latin agēraton, name of a plant, perhaps a species of achillea (Pliny) from Hellenistic Greek ἀγήρατον, name of a plant, perhaps pot marjoram (Dioscorides), use as noun of neuter of ancient Greek ἀγήρατος not growing old from ἀ- + γῆρατ-, γῆρας old age