noun \ˈkäz-məs, 1 & 2 also -ˌmōs, -ˌmäs\

the cosmos : the universe especially when it is understood as an ordered system

: a tall plant that has usually white, pink, or red flowers

Full Definition of COSMOS

a :  universe 1
b (1) :  an orderly harmonious systematic universe — compare chaos
(2) :  order, harmony
:  a complex orderly self-inclusive system
plural cosmos \-məs, -məz\ also cos·mos·es \-mə-səz\ [New Latin, genus name, from Greek kosmos] :  any of a genus (Cosmos) of tropical American composite herbs; especially :  a widely cultivated tall annual (C. bipinnatus) with yellow or red disks and showy ray flowers

Examples of COSMOS

  1. the origins of the cosmos
  2. <an essay that ponders the place of humankind in the vast cosmos>

Illustration of COSMOS

Origin of COSMOS

Greek kosmos
First Known Use: 1596

Related to COSMOS

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith


noun    (Concise Encyclopedia)

Any of the garden plants that make up the genus Cosmos in the aster family (Asteraceae), containing about 25 species native to the tropical New World. Heads of flowers are borne along long flower stalks or together in an open cluster. The disk flowers are red or yellow; the ray flowers, sometimes notched, may be white, pink, red, purple, or other colors. Most annual ornamental varieties have been developed from the common garden cosmos (C. bipinnatus).


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