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Pronunciation varies by accent · noun
The clear, viscid fluid secreted by the poison glands of certain snakes..
Prince Lucien Bonaparte has shown that the poison of the Viper consists essentially of a principle to which he has given the name echidnine or viperine
Use echidnine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Echidnine means The clear, viscid fluid secreted by the poison glands of certain snakes..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Prince Lucien Bonaparte has shown that the poison of the Viper consists essentially of a principle to which he has given the name echidnine or viperine
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