TOEFL のための上級語彙 - 形状

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

非対称

not having identical parts facing each other or around an axis

非対称の

having identical parts facing each other or around an axis

対称の

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

幾何学的

either half of a sphere

半球

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

対角の

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

三日月

a curved shape, or something shaped this way

弧

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

軸

the total length of the external boundary of something

周囲

any half of a circle

半円

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

円柱

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

プリズム

shaped like a triangle, with three sides and three angles

三角形の

having a shape that winds around a central point or axis

螺旋状の

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

同心の

a rectangular figure that has unequal adjacent sides with arched angles

オブロング,長方形

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

オーバル

a geometric shape with five angles and five straight sides

五角形

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

ジグザグ

having a surface that is curved inward

凹面

having a surface that is curved outward

凸型の

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

ヘリックス

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

六角形

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

多角形

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

八角形

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

ひし形

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

ひし形

resembling a cone in shape

円錐形の

resembling a cube in shape

立方体の

something that resembles a spiral or coil

カール

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

ひし形