coloration

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coloration

, colouration
1. the colouring or markings of insects, birds, etc.
2. unwanted extraneous variations in the frequency response of a loudspeaker or listening environment
References in periodicals archive ?
The exact species involved in these colourations have yet to be identified, and Pettigrew said that the harsh conditions in the Kimberley region may hamper future research.
Consisting of 12 new frames, the collection will highlight Zyl colourations and promises a retro-futuristic design theme.
The eco-friendly dyeing process uses natural woods, herbs and pigments to create soft and unique colourations that are soft to the eye and to the touch.