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Pronunciation varies by accent · noun
(organic chemistry) Any carotenoid that has one or more hydroxyl group (typically an even number).
Use hydroxycarotenoid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hydroxycarotenoid means (organic chemistry) Any carotenoid that has one or more hydroxyl group (typically an even number).
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use hydroxycarotenoid where its definition matches the intended context.
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