01 n. A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.
-
1.
A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.(Geom.)
-
2.
An aspect of two planets with regard to the earth when they are distant from each other ninety degrees, or the fourth of a circle.(Astrol.)