Definition of rectangle:
geometric figure (part of speech: noun)
- scalene triangle,
- right-angle triangle,
- equilateral triangle,
- isosceles triangle,
- four (part of speech: noun)
- square (part of speech: noun)
- "Italy at War and the Allies in the West", E. Alexander Powell.
- "Ancient Town-Planning", F. Haverfield.
- "The Dream Doctor", Arthur B. Reeve.