English vocabulary Shapes

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asymmetry

/ˌeɪˈsɪmətɹi/

noun

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

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asymmetric

/ˌeɪsəˈmɛtɹɪk/

adjective

not having identical parts facing each other or around an axis

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symmetric

/səˈmɛtɹɪk/

adjective

having identical parts facing each other or around an axis

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geometric

/ˌdʒiəˈmɛtɹɪk/

adjective

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

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hemisphere

/ˈhɛmɪsˌfɪɹ/

noun

either half of a sphere

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diagonal

/daɪˈæɡənəɫ/

adjective

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

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crescent

/ˈkɹɛsənt/

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

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arc

/ˈɑɹk/

noun

a curved shape, or something shaped this way

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axis

/ˈæksəs/

noun

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

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perimeter

/pɝˈɪmətɝ/

noun

the total length of the external boundary of something

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semicircle

/sˈɛmɪsˌɜːkəl/

noun

any half of a circle

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cylinder

/ˈsɪɫəndɝ/, /ˈsɪɫɪndɝ/

noun

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

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prism

/ˈpɹɪzəm/

noun

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

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triangular

/tɹaɪˈæŋɡjəɫɝ/

adjective

shaped like a triangle, with three sides and three angles

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spiral

/ˈspaɪɹəɫ/

adjective

having a shape that winds around a central point or axis

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concentric

/kənˈsɛntɹɪk/

adjective

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

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oblong

/ˈɑbɫɔŋ/

noun

a rectangular figure that has unequal adjacent sides with arched angles

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oval

/ˈoʊvəɫ/

noun

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

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pentagon

/ˈpɛnɪˌɡɑn/, /ˈpɛntɪˌɡɑn/

noun

(geometry) a polygon with five angles and five straight sides

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zigzag

/ˈzɪɡzæɡ/

noun

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

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concave

/ˈkɑnkeɪv/, /kɑnˈkeɪv/

adjective

having a surface that is curved inward

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convex

/ˈkɑnˌvɛks/, /kənˈvɛks/

adjective

having a surface that is curved outward

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helix

/ˈhiɫɪks/

noun

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

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hexagon

/ˈhɛksəˌɡɑn/

noun

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

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polygon

/ˈpɑɫɪˌɡɑn/

noun

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

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octagon

/ˈɑktəˌɡɑn/

noun

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

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rhombus

/ɹˈɑːmbəs/

noun

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

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rhomboid

/ɹˈɑːmbɔɪd/

noun

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

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conical

/ˈkɑnɪkəɫ/, /ˈkoʊnɪkəɫ/

adjective

resembling a cone in shape

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cubic

/ˈkjubɪk/

adjective

resembling a cube in shape

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curl

/ˈkɝɫ/

noun

something that resembles a spiral or coil

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lozenge

/ˈɫɔzəndʒ/

noun

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

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