Popular Terms. Detailed listing of activities, costs, expected difficulties, and schedules that are required to achieve the objectives of the strategic plans. Because of the quick increase in number of employees the company I work for reviewed their implementation plan for evacuating the building if there is a fire.
Noun. 1. rectangle-a parallelogram with four right angles. foursquare, square - (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; you can compute the area of a square if you know the length of its sides.
The definition of a rectangle is a four-sided figure with four 90-degree angles and lines that are either two different lengths (two lines same length, other two lines same size), or all the lines are the same length (a square). A rhombus has four sides that are the same length with no restriction on its angles.