ACHROMATIC COLOUR

\ˌakɹə͡ʊmˈatɪk kˈʌlə], \ˌakɹə‍ʊmˈatɪk kˈʌlə], \ˌa_k_ɹ_əʊ_m_ˈa_t_ɪ_k k_ˈʌ_l_ə]\

Definitions of ACHROMATIC COLOUR

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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd