cobalt blue

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. a shade of blue tinged with green (Freq. 1)
• Syn:
greenish blue, aqua, aquamarine, turquoise, peacock blue
• Hypernyms:
blue, blueness
2. greenish-blue pigment consisting essentially of cobalt oxide and alumina
• Syn:
cobalt ultramarine
• Hypernyms:
pigment