11-letter words containing a, r, m, u, e
- wave number — the number of waves in one centimeter of light in a given wavelength; the reciprocal of the wavelength.
- waved umber — a brownish geometrid moth, Menophra abruptaria, that is cryptically marked to merge with tree bark
- xeranthemum — any of a Mediterranean genus of plants having flower heads that are dry and retain their colour and shape for years: family Asteraceae (composites)