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: The artist used asymmetry to create an interesting visual effect .

asymmetric [adjective]

not having identical parts facing each other or around an axis

Ex: Her asymmetric hairstyle featured different lengths on each side , creating a bold and edgy look .

symmetric [adjective]

having identical parts facing each other or around an axis

Ex: The symmetric arrangement of the flowers in the garden bed created a visually pleasing display .

geometric [adjective]

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

Ex: Architects use geometric principles to design buildings with precise angles and proportions .

hemisphere [noun]

either half of a sphere

Ex: They used a metal hemisphere to cover the delicate machinery .

diagonal [adjective]

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

Ex: The diagonal plane of the cube divided it into two symmetrical halves .

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: She watched the crescent slowly grow each night as the moon waxed towards fullness .

arc [noun]

a curved shape, or something shaped this way

axis [noun]

a straight line that defines the symmetry or structure of a figure or object

Ex: The designer marked the central axis of the building .

perimeter [noun]

the total length of the external boundary of something

Ex: The farmer used a long measuring tape to determine the perimeter of his rectangular cornfield before installing a new fence .

semicircle [noun]

any half of a circle

Ex: He drew a semicircle on the board to explain the concept of angles .

cylinder [noun]

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

Ex: The artist sculpted a beautiful marble cylinder as part of a modern art installation .

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: They used a triangular ruler for precise measurements .

spiral [adjective]

having a shape that winds around a central point or axis

Ex: The spring was coiled in a spiral shape , providing tension when compressed .

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:

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: The stop sign is shaped like a red pentagon to alert drivers to halt .

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:

convex [adjective]

having a surface that is curved outward

Ex:

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: She decided to tile her bathroom floor with hexagon-shaped tiles.

polygon [noun]

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

Ex: The stop sign is an example of an octagonal polygon .

octagon [noun]

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

Ex: Each of the eight sides of the octagon was painted a different color .

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 beaker narrowed to a pointed tip , allowing for precise pouring of liquids .

cubic [adjective]

resembling a cube in shape

Ex: The cubic dice rolled across the table , each face showing a different number of dots .

curl [noun]

something that resembles a spiral or coil

Ex: He noticed a delicate curl of smoke rising from the chimney of the cabin .

lozenge [noun]

(geometry) a four-sided figure with opposite equal angles, forming a diamond shape

Ex: The heraldic shield displayed a golden lozenge .

Advanced Vocabulary for TOEFL
Human Anatomy	Biology	Engineering and Electronics	Architecture
Mathematics and Measurement	The Computer World	Physics and Chemistry	Experimentation
Time and Space	History	Physical Appearance	The Fashion World
Language and Grammar	Communication	Transportation	Art
Literature and Writing	The Entertainment Industry	News and Journalism	Education
Feelings and Emotions	Advice and Decision	Personal Characteristics	Shapes
The Animal Kingdom	Food and Restaurant	Healthcare and Medicine	Physical Conditions and Injuries
Mental Health and Disorders	Politics	Religion	Hatred or Affection
The Law	Doubt and Certainty	Crime and Punishment	Society
Social Problems	Argumentation	Persuasion and Agreement	Preference, Obligation, and Permission
Sports	Shopping	Money and Business	Professional Life and Occupations
Natural Phenomena and Environment	Farming and Vegetation	I Think, Therefore I Am!