quadratic
— Noun
– English
～ an equation in which the highest power of an unknown quantity is a square
quadratics
— Noun
– English
～ a branch of algebra dealing with quadratic equations
quadrature
— Noun
– English
～ the construction of a square having the same area as some other figure
quadrennium
— Noun
– English
～ a period of four years
quadric
— Noun
– English
～ a curve or surface whose equation (in Cartesian coordinates) is of the second degree
quadriceps femoris
— Noun
– English
～ a muscle of the thigh that extends the leg
quadriceps
— Noun
– English
～ a muscle of the thigh that extends the leg
quadrilateral
— Noun
– English
～ a four-sided polygon
quadrille
— Noun
– English
～ music for dancing the quadrille
quadrille
— Noun
– English
～ a square dance of 5 or more figures for 4 or more couples
quadrillion
— Noun
– English
～ the number that is represented as a one followed by 15 zeros
quadrillion
— Noun
– English
～ the number that is represented as a one followed by 24 zeros; "in England they call a septillion a quadrillion"
quadrillionth
— Noun
– English
～ one part in a quadrillion equal parts
quadripara
— Noun
– English
～ (obstetrics) woman who has given birth to a viable infant in each of four pregnancies
quadriplegia
— Noun
– English
～ paralysis of both arms and both legs
quadriplegic
— Noun
– English
～ a person who is paralyzed in both arms and both legs
quadrivium
— Noun
– English
～ (Middle Ages) a higher division of the curriculum in a medieval university involving arithmetic and music and geometry and astronomy
quadroon
— Noun
– English
～ an offspring of a mulatto and a white parent; a person who is one-quarter black
quadrumvirate
— Noun
– English
～ a group of four men
quadruped
— Noun
– English
～ an animal especially a mammal having four limbs specialized for walking