| qua | an equation in which the highest power of an unknown quantity is a square |
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| qua | a polynomial of the second degree |
| qua | a branch of algebra dealing with quadratic equations |
| qua | the construction of a square having the same area as some other figure |
| qua | a curve or surface whose equation (in Cartesian coordinates) is of the second degree |
| qua | a curve or surface whose equation (in Cartesian coordinates) is of the second degree |
| qua | a muscle of the thigh that extends the leg |
| qua | a muscle of the thigh that extends the leg |
| qua | the first Sunday in Lent |
| qua | a four-sided polygon |
| qua | having four sides |
| qua | a square dance of 5 or more figures for 4 or more couples |