Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class II. Words Relating to Space
Section III. Form
2. Special Form

244. Angularity.

   NOUN:ANGULARITY, angularness; aduncity; angle, cusp, bend; fold [See Fold]; notch [See Notch]; fork, furculum, bifurcation.
  elbow, knee, knuckle, ankle, groin, crotch, crutch; crane, fluke, scythe, sickle; zigzag.
  CORNER, nook, recess, niche, oriel, coign (as in “coign of vantage”).
  RIGHT ANGLE (perpendicular) [See Verticality]; obliquity [See Obliquity]; angle of 45 degrees, miter; acute -, obtuse -, salient -, reëntering -, spherical- angle.
  ANGULAR -MEASUREMENT, – elevation, – distance, – velocity; trigonometry, goniometry; altimeter, pantometer, altimetry; clinometer, graphometer, goniometer; theodolite; transit or transit theodolite, sextant, quadrant; dichotomy.
  triangle, trigon, wedge; rectangle, square, lozenge, diamond; rhomb, rhombus, rhomboid, rhombohedron, quadrangle, quadrilateral; parallelogram; quadrature; polygon, pentagon, hexagon, heptagon, octagon, oxygon, decagon.
  Platonic bodies; cube, rhomboid; tetrahedron, pentahedron, hexahedron, octahedron, dodecahedron, icosahedron; prism, pyramid; parallelepiped or parallelepipedon; curb -, gambrel -, French -, mansard- roof.
   VERB:FORK, furcate, divaricate, branch, ramify, bifurcate, bend, crinkle.
   ADJECTIVE:ANGULAR, bent, crooked, aduncous, adunc or aduncal, aduncate or aduncated, uncinated, aquiline, jagged, serrated; falciform, falcated; furcal, furcate, furcated, forked, bifurcate, crotched, zigzag, furcular, hooked; dove-tailed; knockkneed, crinkled, akimbo, kimbo [obs.], geniculated; oblique [See Obliquity].
  wedge-shaped, cuneiform; cuneate, multangular, oxygonal; triangular, trigonal, trilateral; quadrangular, quadrilateral, foursquare, rectangular, square; multilateral; polygonal &c. n.; cubical, rhombic or rhombical, rhomboidal, pyramidal.