quartile

• POS: Adjective, Noun
• HYPHEN: quar=tile

CIDE DICTIONARY

quartile, n. [F. quartile aspect, fr. L. quartus the fourth. See Quart.].

 Same as Quadrate.  [1913 Webster]

OXFORD DICTIONARY

quartile, adj. & n.
--adj. Astrol. relating to the aspect of two celestial bodies 90° apart.
--n.
1 a quartile aspect.
2 Statistics one of three values of a variable dividing a population into four equal groups as regards the value of that variable.

Etymology

med.L quartilis f. L quartus fourth

ROGET THESAURUS

quartile

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.