C2 Level Wordlist - Shapes

Here you will learn all the essential words for talking about Shapes, collected specifically for level C2 learners.

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C2 Level Wordlist
convex [adjective]

having a surface that is curved outward

Ex:
hexagonal [adjective]

having six equal sides and six angles

Ex: The soccer ball featured a hexagonal pattern on its surface , creating the iconic appearance of the classic ball .
concave [adjective]

having a surface that is curved inward

Ex:
trapezoidal [adjective]

having the shape of a trapezoid, a quadrilateral with one pair of parallel sides

Ex:
curvilinear [adjective]

having curved lines, forms, or structures

Ex: The architect incorporated curvilinear windows into the building 's design , allowing for a harmonious and fluid appearance .
polygonal [adjective]

having a shape with multiple straight edges and angles

Ex: The garden design incorporated polygonal paving stones , creating an interesting and structured pathway .
annular [adjective]

having the form of a ring

Ex: The geologist studied the annular patterns in the rock formations to understand the geological history of the area .
ellipsoidal [adjective]

resembling an ellipse or an oval-shaped object

Ex: The designer created an ellipsoidal vase , combining symmetry and elegance in its oval form .
parabolic [adjective]

having the shape of a U-shaped curve, often seen in trajectories, mirrors, or arches

Ex: The bridge cable forms a parabolic curve under its own weight .
octagonal [adjective]

having the shape or characteristics of an octagon, which is a polygon with eight sides and eight angles

Ex: The traffic sign indicated an upcoming intersection with an octagonal shape , signaling drivers to stop .
tetrahedral [adjective]

characterized by or resembling a tetrahedron, which has four triangular faces

Ex: The tetrahedral arrangement of atoms in the crystal lattice contributes to its unique properties .
pentagonal [adjective]

having the shape of a pentagon, which is characterized by five straight sides and five angles

Ex: The clock face in the town square was designed with a pentagonal frame , enhancing its visual appeal .
cone-shaped [adjective]

having the form or characteristics of a cone, which is a three-dimensional geometric shape with a circular base tapering to a point at the apex

Ex: The pine trees in the forest often had a cone-shaped crown , characteristic of their species .
coiled [adjective]

having a spiral or wound shape, often forming a series of loops or turns

Ex: The climber secured the rope with a coiled knot before ascending the rock face .
tubular [adjective]

having the shape or characteristics of a tube

Ex: The flowers in the garden had tubular petals , attracting hummingbirds with their unique shape .
pyramidal [adjective]

resembling a structure with a polygonal base and triangular sides, often tapering to a point at the apex

Ex:
toroidal [adjective]

resembling a doughnut or a ring-shaped object

Ex: The modern sculpture in the park had a toroidal shape , creating an interesting focal point for visitors .
bulbous [adjective]

having the form or structure of a bulb

Ex: The onion 's bulbous body made it easy to grasp and peel .
oblong [noun]

a rectangular figure that has unequal adjacent sides with arched angles

Ex: