Definition of blue camomile in English:

blue camomile

noun

  • 1The blue-flowered sea aster, Aster tripolium (now rare).

  • 2German chamomile, Matricaria chamomilla which yields a blue essential oil, (also) the oil itself, used in perfumery and cosmetics.

Origin

Late 16th century; earliest use found in John Gerard (c1545–1612), herbalist.