| inclined plane |
a plane surface inclined at less than a right angle to a horizontal surface, used to roll or slide a load up or down. |
| isometric |
of or pertaining to a crystal system that has three equal axes at right angles to each other. [1/4 definitions] |
| mattock |
a tool with a flat blade fixed at a right angle on one side and an axlike blade on the other, used for digging and loosening soil. |
| Mercator projection |
a map in which the meridians and the parallels of latitude are shown as straight lines that cross at right angles, and in which areas appear more distorted the farther they are from the equator. |
| monoclinic |
of or designating a system of crystal formation in which three crystal axes of unequal length intersect, two at right angles and one obliquely. |
| oblique |
not parallel or at right angles to a line or plane; slanting or inclined. [2/5 definitions] |
| oblique angle |
any angle that is not a right angle; acute or obtuse angle. |
| paddle wheel |
an engine-driven or pedal-operated wheel that has boards or paddles fixed at right angles around its circumference, used to propel a boat, esp. a river steamboat. |
| perpendicular |
at or forming a right angle to or with an intersecting line or plane. [2/7 definitions] |
| plaid |
a fabric bearing a pattern of stripes of various widths and colors, intersecting at right angles. [1/3 definitions] |
| plywood |
a sturdy board made from thin layers of wood tightly compressed and glued together, usu. with the grains at right angles. |
| quadrant |
any of the four parts that result when an area is divided by two lines, real or imaginary, that intersect each other at right angles. [1/5 definitions] |
| radial |
a tire in which the ply cords lie at right angles to the tread lines; radial tire. [1/7 definitions] |
| radial tire |
a tire with ply cords at right angles to the center line of the tread. |
| rectangle |
a geometric plane figure with four sides, four right angles, and opposite sides parallel. |
| rectangular |
having or forming a right angle. [1/3 definitions] |
| right triangle |
a triangle in which two of the sides form a right angle. |
| scythe |
a tool for cutting grass, harvesting grain, or the like, having a long handle to which a long, curved blade is attached, usu. at a right angle. [1/2 definitions] |
| seahorse |
a small semitropical marine fish that swims in an upright position, with its head, resembling that of a horse, at right angles to its body. |
| split |
(sometimes pl.) a gymnastic feat in which the legs are extended in opposite directions at right angles to the torso as the body sinks to the ground. [1/16 definitions] |
| square |
a instrument having straight edges and a right angle used to draw or test right angles. [4/24 definitions] |