cosmos UK /ˈkɒzmɒs/US /ˈkɑzməs/ noun4 •The universe regarded as a system with harmony and order.Can you conceive a process by which you, an organic being, are in the same way dissolved into the cosmos, and then by a subtle reversal of the conditions reassembled once more?" — 1929 •A harmonious, ordered whole.This simple cell is a cosmos in this respect: it represents the laws of the universe in changes of matter, and clearly exemplifies their workings in the oral cavity. — 1890 •Harmony, order. •Any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously coloured flowers and pinnate leaves.People were attracted to him as bees are attracted to cosmos or dahlia stalks. — 1947 formscosmoi · cosmoses