Advanced Vocabulary for TOEFL - Shapes

Here you will learn some English words about shapes, such as "diagonal", "prism", "oval", etc. that are needed for the TOEFL exam.

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asymmetry

[noun]

(geometry) a lack of symmetry or equivalence in shape or size between the two sides or parts of something

Ex: Studying asymmetry helps in understanding how shapes differ from being perfectly symmetrical .

asymmetric

[Adjective]

not having identical parts facing each other or around an axis

Ex: The asymmetric layout of the garden incorporated winding paths and varied plantings for a naturalistic feel .

symmetric

[Adjective]

having identical parts facing each other or around an axis

Ex: The symmetric alignment of the columns in the building 's facade added to its grandeur .

geometric

[Adjective]

connected with the branch of mathematics that deals with the relationships between lines, angles and surfaces

Ex: Geometric transformations like translations , rotations , and reflections are used in computer graphics to manipulate images and objects .

hemisphere

[noun]

either half of a sphere

Ex: The dome 's structure resembled a hemisphere, providing a spacious and airy interior .

diagonal

[Adjective]

(of a straight line) joining opposite corners of a flat shape at an angle

Ex: The designer added a bold diagonal stripe that extended from the top left corner to the bottom right corner of the canvas .

crescent

[noun]

a curved shape with narrow points at the ends that appears wider in the middle, like the shape of the moon in its first and last quarters

Ex: The crescent of the new moon was barely visible against the twilight sky .

arc

[noun]

a curved shape, or something shaped this way

axis

[noun]

(geometry) an arbitrary straight line that passes through the center of a symmetrical object or around which an object spins

perimeter

[noun]

the total length of the external boundary of something

Ex: The science project required students to build a model volcano and measure the perimeter of its base for stability analysis .

semicircle

[noun]

any half of a circle

Ex: The audience formed a semicircle around the street performer .

cylinder

[noun]

(geometry) a solid or hollow shape with two circular bases at each end and straight parallel sides

Ex: The ancient columns were made in the shape of massive stone cylinders, supporting the grand structure .

prism

[noun]

(geometry) a solid figure with flat sides and two parallel ends of the same size and shape

triangular

[Adjective]

shaped like a triangle, with three sides and three angles

Ex: The tent had a triangular opening at the front .

spiral

[Adjective]

having a shape that winds around a central point or axis

Ex: The corkscrew had a spiral screw that easily penetrated the cork .

concentric

[Adjective]

describing circles, arcs, or rings that have the same center

oblong

[noun]

a rectangular figure that has unequal adjacent sides with arched angles

Ex: The garden featured an oblong pond with curved corners, creating a peaceful and inviting atmosphere.

oval

[noun]

a shape that is wide in the middle and narrow at both ends

Ex: In geometry , an oval is often described as an ellipse with varying lengths .

pentagon

[noun]

a geometric shape with five angles and five straight sides

Ex: She drew a pentagon on the chalkboard to illustrate its shape to the students .

zigzag

[noun]

(geometry) a shape that consists of a line alternating its direction to left and right

concave

[Adjective]

having a surface that is curved inward

Ex: The concave lens corrected his vision, allowing him to see distant objects more clearly.

convex

[Adjective]

having a surface that is curved outward

Ex: The artist used a convex mold to create the rounded sculpture .

helix

[noun]

(geometry) a line curved on a conical or cylindrical surface, like a spiral staircase in shape

hexagon

[noun]

(geometry) a closed shape with six straight sides and six angles

Ex: In geometry class , students learned how to calculate the area of a hexagon.

polygon

[noun]

(geometry) a flat shape consisting of three or more straight sides

Ex: Polygons can be classified based on the number of their sides , such as pentagons and hexagons .

octagon

[noun]

(geometry) a polygon consisting of eight straight sides and eight angles

Ex: The child 's drawing featured a perfectly symmetrical octagon.

rhombus

[noun]

(geometry) a flat shape with four equal sides in which opposite angles are equal

rhomboid

[noun]

(geometry) a parallelogram with four straight sides and no right angles

conical

[Adjective]

resembling a cone in shape

Ex: The conical roof of the gazebo sheltered picnickers from the sun , its peaked design adding charm to the park .

cubic

[Adjective]

resembling a cube in shape

Ex: The cubic block of cheese sat on the cutting board .

curl

[noun]

something that resembles a spiral or coil

Ex: The waves crashed against the shore , leaving behind frothy curls of foam .

lozenge

[noun]

(geometry) a figure with four sides and two opposite angles more than 90° and two of less than 90°

Advanced Vocabulary for TOEFL

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