| English adjective: biquadratic | |||
| 1. | biquadratic of or relating to the fourth power | ||
| English noun: biquadratic | |||
| 1. | biquadratic (quantity) an algebraic equation of the fourth degree | ||
| Synonyms | biquadrate, fourth power, quartic | ||
| Broader (hypernym) | number | ||
| 2. | biquadratic (communication) an equation of the fourth degree | ||
| Synonyms | biquadratic equation | ||
| Broader (hypernym) | equation | ||
| 3. | biquadratic (cognition) a polynomial of the fourth degree | ||
| Synonyms | biquadratic polynomial, quartic polynomial | ||
| Broader (hypernym) | multinomial, polynomial | ||