Four-sided+figure
21quadrilateral — noun a four sided figure. adjective having four straight sides. Origin C17: from late L. quadrilaterus + al …
22quadrilateral — ► NOUN ▪ a four sided figure. ► ADJECTIVE ▪ having four straight sides …
23square — [13] Etymologically a square is a ‘four’ sided figure. The word comes via Old French esquare or esqire (squire was the Middle English form of square) from Vulgar Latin *exquadra, a derivative of *exquadrāre ‘square’. This was a compound verb… …
24quadrilateral — adj. & n. adj. having four sides. n. a four sided figure. Etymology: LL quadrilaterus (as QUADRI , latus lateris side) …
25rec|tan|gle — «REHK TANG guhl», noun. a four sided figure with four right angles. ╂[alteration of Medieval Latin rectiangulum < Late Latn, neuter of rectiangulus having a right angle < Latin rēctus right (< regere straighten, rule) + angulus angle] …
26Rectangle — Rec tan gle (r?k t?? g l), n. [F., fr. L. rectus right + angulus angle. See {Right}, and {Angle}.] (Geom.) A four sided figure having only right angles; a right angled parallelogram. [1913 Webster] Note: As the area of a rectangle is expressed by …
27Trapezoid — Trap e*zoid, n. [Gr. ? trapezoid shaped; ? table + ? shape, likeness: cf. F. trap[ e]zo[ i]de. See {Trapezium}.] 1. (Geom.) A plane four sided figure, having two sides parallel to each other. [1913 Webster] 2. (Anat.) A bone of the carpus at the… …
28trapezium — n. [Gr. trapezion, small table] A four sided figure, having no two sides parallel; trapeziform …
29trapezoid — n. [Gr. trapezion, small table; eidos, shape] A plane four sided figure in which two sides are parallel and two are not. trapezoidal, trapeziform adj …
30trapezius muscle — ▪ anatomy large, superficial muscle at the back of the neck and the upper part of the thorax, or chest. The right and left trapezius together form a trapezium, an irregular four sided figure. It originates at the occipital bone at the base… …
