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The word iridescence is derived in part from the Greek word ἶρις îris (gen. ἴριδος íridos), meaning rainbow, and is combined with the Latin suffix -escent, meaning "having a tendency toward". [1] Iris in turn derives from the goddess Iris of Greek mythology, who is the personification of the rainbow and acted as a messenger of the ...
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Words in Colour first appeared in 1962, published simultaneously in the UK and US. Later versions were published in French (French: Lecture en Couleurs) and Spanish (Spanish: Letras en Color). [2] Words in Colour is a synthetic phonics system that uses colour to indicate the phonetic properties of letters. [3]
In chemistry, chromism is a process that induces a change, often reversible, in the colors of compounds.In most cases, chromism is based on a change in the electron states of molecules, especially the π- or d-electron state, so this phenomenon is induced by various external stimuli which can alter the electron density of substances.
The color psychology behind Eisman and her team’s last three selections have been rooted in endurance, optimism, courage and strength, referencing our continually turbulent times.
This process, often used as a type of camouflage, is called physiological colour change or metachrosis. [1] Cephalopods, such as the octopus , have complex chromatophore organs controlled by muscles to achieve this, whereas vertebrates such as chameleons generate a similar effect by cell signalling .
Synonyms C.I. generic name C.I. number Class CAS number Acid Black 52 Acid Black 52 15711 azo 5610-64-0: Acid Blue AS Weak Acid Blue Acid Blue 25: 62055 anthraquinone: 6408-78-2: Acid fuchsin: Acid Magenta Acid Rubin Acid Violet 19 42685 triarylmethane: 3244-88-0: Acid orange 3 Acid orange 3 10385 nitro 6373-74-6: Acid orange 19: Acid Orange 19 ...
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language , the words begin , start , commence , and initiate are all synonyms of one another: they are synonymous .