Synonyms and antonyms of Lines and flat surfaces in American Thesaurus

arc (noun)

a curved shape or line

arc (noun)

maths a part of the line that forms the outside of a circle

axis (noun)

maths an imaginary line that divides a square, circle, or other regular shape into two equal halves

chord (noun)

maths a straight line that connects two points in a circle or curved line

curvature (noun)

science the way in which something curves

diagonal (noun)

a straight sloping line across a flat shape or surface

diameter (noun)

a straight line that crosses a circle through the center, or the length of this line

horizontal (noun)

maths a horizontal line or position

inclined plane (noun)

a flat surface that forms a slope, making an angle of less than 90 degrees with a horizontal surface

line (noun)

an edge that shows the shape of something

outline (noun)

a line that shows the outer edge or shape of something

parabola (noun)

a curve that is similar in shape to the rising and falling path of an object that is thrown into the air

perpendicular (noun)

a line that is perpendicular to another line

plane (noun)

a flat surface

plane (noun)

maths a flat surface in which a straight line between any two points will lie completely on that surface

radius (noun)

maths the distance from the center of a circle to its edge, or a straight line from the center to the edge

segment (noun)

maths a part of a line or curve between any two points on it

segment (noun)

maths a part of a circle that is formed by a straight line going across it but not passing through the center

squiggle (noun)

a line with a lot of curves in it

tan (abbreviation)

tangent

tangent (noun)

a straight line that touches the edge of a circle but does not pass through it

trajectory (noun)

the high curving line in which an object such as a missile moves through the air

vanishing point (noun)

art the point in the distance where two parallel lines appear to become one line

vertical (noun)

a vertical line or position

zigzag (noun)

a line or movement that makes sharp angles because it suddenly changes from one direction to another