A chrysanthemum is a large garden flower with many long, thin petals.
chrysanthemum in British English
(krɪˈsænθəməm)
noun
1.
any widely cultivated plant of the genus Chrysanthemum, esp C. morifolium of China, having brightly coloured showy flower heads: family Asteraceae (composites)
2.
any other plant of the genus Chrysanthemum, such as oxeye daisy
Word origin
C16: from Latin: marigold, from Greek khrusanthemon, from khrusos gold + anthemon flower
chrysanthemum in American English
(krɪˈsænθəməm; krɪˈzænθəməm)
noun
1.
any of a genus (Chrysanthemum) of plants of the composite family, cultivated for their showy flowers which bloom in late summer and fall in a variety of colors, most commonly yellow, white, red, or purple
2.
the flower
Word origin
ModL < L < Gr chrysanthemon, marigold, lit., golden flower < chrysos (see chrysalis) + anthemon, a flower