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WordNet-Online 
 
Adjective biquadratic has 1 sense 
Noun biquadratic has 3 senses 
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| biplane flying fish biplane symoym bipolar bipolar disorder bipolar i bipolis biprism biquadrate biquadratic biquadratic equation biquadratic polynomial biquitous biracial biradial biradially biramous biras 
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