| Answer | Crossword Clue |
|---|---|
| bilinear | of the first degree in each of two variables, as an equation |
| quadric | surface such as an ellipsoid or paraboloid as defined by a second-degree equation in three real variables |
| quadrics | surface such as an ellipsoid or paraboloid as defined by a second-degree equation in three real variables |
| rondeau | a fixed form of verse based on two rhyme sounds and consisting usually of 13 lines in three stanzas with the opening words of the first line of the first stanza used as an independent refrain after the second and third stanzas |
| rondeaux | a fixed form of verse based on two rhyme sounds and consisting usually of 13 lines in three stanzas with the opening words of the first line of the first stanza used as an independent refrain after the second and third stanzas |
