Word Study
quadratic
WORDNET DICTIONARY
Noun quadratic has 2 senses
- quadratic(n = noun.communication) quadratic equation - an equation in which the highest power of an unknown quantity is a square; Array is a kind of equation
- quadratic(n = noun.cognition) quadratic polynomial - a polynomial of the second degree; Array is a kind of multinomial, polynomial
Adjective quadratic has 2 senses
CIDE DICTIONARY
quadratic, a. [Cf. F. quadratique.].
- Of or pertaining to a square, or to squares; resembling a quadrate, or square; square. [1913 Webster]
- Tetragonal. [1913 Webster]
- Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square. [1913 Webster]
OXFORD DICTIONARY
quadratic, adj. & n. Math.
--adj.
1 involving the second and no higher power of an unknown quantity or variable (quadratic equation).
2 square.
--n.
1 a quadratic equation.
2 (in pl.) the branch of algebra dealing with these.
--adj.
1 involving the second and no higher power of an unknown quantity or variable (quadratic equation).
2 square.
--n.
1 a quadratic equation.
2 (in pl.) the branch of algebra dealing with these.
Etymology
F quadratique or mod.L quadraticus (as QUADRATE)
ROGET THESAURUS
quadratic
Four
N quaternity, four, tetrad, quartet, quaternion, square, quarter, tetract, tetragon, quadrangle, rectangle, tetrahedron, quadrature, quadrifoil, quadriform, quadruplet, quatrefoil, tetrapod, quadrangle, quad, quadrupole, quadrivium, four, quaternary, quaternal, quadratic, quartile, tetract, tetractic, tetractinal, tetrad, tetragonal, square, quadrate.
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