Word Study
rectangle
CIDE DICTIONARY
A four-sided figure having only right angles; a right-angled parallelogram. [1913 Webster]
" As the area of a rectangle is expressed by the product of its two dimensions, the term rectangle is sometimes used for product; as, the rectangle of a and b, that is, ab." [1913 Webster]
rectangle, a.
Rectangular. [1913 Webster]
OXFORD DICTIONARY
rectangle, n. a plane figure with four straight sides and four right angles, esp. one with the adjacent sides unequal.
Etymology
F rectangle or med.L rectangulum f. LL rectiangulum f. L rectus straight + angulus ANGLE(1)
THESAURUS
rectangle
Little Joe, biquadrate, four, four-part diaphony, foursome, quad, quadrangle, quadrature, quadrennium, quadrilateral, quadrille, quadrinomial, quadruplet, quartet, quatern, quaternary, quaternion, quaternity, quatrefoil, square, square dance, squaring, tetrad, tetragon, tetragram, tetragrammaton, tetrahedron, tetralogy, tetraphony, tetrapodyROGET THESAURUS
rectangle
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.Angularity
N angularity, angularness, aduncity, angle, cusp, bend, fold, notch, fork, bifurcation, elbow, knee, knuckle, ankle, groin, crotch, crutch, crane, fluke, scythe, sickle, zigzag, kimbo, akimbo, corner, nook, recess, niche, oriel, coign, right angle, obliquity, angle of 45 degrees, miter, acute angle, obtuse angle, salient angle, reentering angle, spherical angle, angular measurement, angular elevation, angular distance, angular velocity, trigonometry, goniometry, altimetry, clinometer, graphometer, goniometer, theodolite, sextant, quadrant, dichotomy, triangle, trigon, wedge, rectangle, square, lozenge, diamond, rhomb, rhombus, quadrangle, quadrilateral, parallelogram, quadrature, polygon, pentagon, hexagon, heptagon, octagon, oxygon, decagon, pyramid, cone, Platonic bodies, cube, rhomboid, tetrahedron, pentahedron, hexahedron, octahedron, dodecahedron, icosahedron, eicosahedron, prism, pyramid, parallelopiped, curb roof, gambrel roof, mansard roof, angular, bent, crooked, aduncous, uncinated, aquiline, jagged, serrated, falciform, falcated, furcated, forked, bifurcate, zigzag, furcular, hooked, dovetailed, knock kneed, crinkled, akimbo, kimbo, geniculated, oblique, fusiform, wedge-shaped, cuneiform, cuneate, multangular, oxygonal, triangular, trigonal, trilateral, quadrangular, quadrilateral, foursquare, rectangular, square, multilateral, polygonal, cubical, rhomboid, rhomboidal, pyramidal.For further exploring for "rectangle" in Webster Dictionary Online