Adjective ultramarine has 1 sense
  1. ultramarine - of a brilliant pure blue to purplish blue color
    Antonym:
    achromatic (indirect, via chromatic)
,Noun ultramarine has 2 senses
  1. ultramarine, ultramarine blue - blue pigment made of powdered lapis lazuli
    --1 is a kind of pigment
    --1 has particulars: French blue, French ultramarine, French ultramarine blue
  2. ultramarine - vivid blue to purple-blue
    --2 is a kind of
    blue, blueness
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