弧
同一义项的词语：弧
something curved in shape
义项编号 13896100-n汉语开放词网 · 第355页
共 41,499 条，第355页完整浏览。按义项组织词语；同义词集及概念关系不表示这些词在任意句子中都能替换。英文义项说明保留来源原文。
新月形
同一义项的词语：新月形
any shape resembling the curved shape of the moon in its first or last quarters
义项编号 13896217-n凹陷、印痕、印记、压痕、盖印
a concavity in a surface produced by pressing; "he left the impression of his fingers in the soft mud"
义项编号 13896369-n凹痕、微凹
any slight depression in a surface; "there are approximately 336 dimples on a golf ball"
义项编号 13896695-n双曲面
同一义项的词语：双曲面
a quadric surface generated by rotating a hyperbola around its main axis
义项编号 13896854-n抛物面
同一义项的词语：抛物面
a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis
义项编号 13897002-n椭圆体、椭球、椭面
a surface whose plane sections are all ellipses or circles; "the Earth is an ellipsoid"
义项编号 13897198-n侧面、边部或侧面
a subfigure consisting of a side of something
义项编号 13897377-n斜边
同一义项的词语：斜边
the side of a right triangle opposite the right angle
义项编号 13897528-n垂线、顶垂线、高线
the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
义项编号 13897657-n底、底边、底面
the bottom side of a geometric figure from which the altitude can be constructed; "the base of the triangle"
义项编号 13897837-n均衡、平衡
equality of distribution
义项编号 13897996-n匀称配置、对称、对称排列
a symmetrical arrangement of the parts of a thing
义项编号 13898207-n匀称、对称、整齐
balance among the parts of something
义项编号 13898315-n不均衡、不相称
lack of proportion; imbalance among the parts of something
义项编号 13898509-n球状体
同一义项的词语：球状体
a shape that is generated by rotating an ellipse around one of its axes; "it looked like a sphere but on closer examination I saw it was really a spheroid"
义项编号 13898645-n球、球体、球形、球面
a three-dimensional closed surface such that every point on the surface is equidistant from the center
义项编号 13898899-n半球
同一义项的词语：半球
half of a sphere
义项编号 13899109-n球体、球形
a solid figure bounded by a spherical surface (including the space it encloses)
义项编号 13899200-n球、球体、球状物
an object with a spherical shape; "a ball of fire"
义项编号 13899404-n小球体
同一义项的词语：小球体
a small sphere
义项编号 13899735-n圆筒、柱面
a surface generated by rotating a parallel line around a fixed line
义项编号 13899804-n环面物
同一义项的词语：环面物
a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
义项编号 13900088-n环、环面、超环面、超环面体
the doughnut-shaped object enclosed by a torus
义项编号 13900287-n柱形
同一义项的词语：柱形
anything that approximates the shape of a column or tower; "the test tube held a column of white powder"; "a tower of dust rose above the horizon"; "a thin pillar of smoke betrayed their campsite"
义项编号 13900422-n小柱
同一义项的词语：小柱
a small column (or structure resembling a column) that is a part of a plant or animal
义项编号 13900914-n天然怪岩柱
同一义项的词语：天然怪岩柱
(geology) a column of weathered and unusually shaped rock; "a tall sandstone hoodoo"
义项编号 13901055-n桶形、桶装物、筒形物、鼓形物
a bulging cylindrical shape; hollow with flat ends
义项编号 13901211-n筒、管、管子、管状
a hollow cylindrical shape
义项编号 13901321-n小球
同一义项的词语：小球
a small sphere
义项编号 13901423-n一团、一堆
a small round soft mass (as of chewed food)
义项编号 13901490-n小滴、液滴、滴、珠
a shape that is spherical and small; "he studied the shapes of low-viscosity drops"; "beads of sweat on his forehead"
义项编号 13901585-n露
同一义项的词语：露
a drop of dew
义项编号 13901858-n泪滴状物、泪状物
anything shaped like a falling drop (as a pendant gem on an earring)
义项编号 13901925-n脊
同一义项的词语：脊
any long raised strip
义项编号 13902048-n皱状
同一义项的词语：皱状
a ridge on a corrugated surface
义项编号 13902229-n轮缘、边、边缘
the shape of a raised edge of a more or less circular object
义项编号 13902336-n尖头、尖状物、尖端
a V shape; "the cannibal's teeth were filed to sharp points"
义项编号 13902482-n二次曲线、二次曲面
a curve or surface whose equation (in Cartesian coordinates) is of the second degree
义项编号 13902905-n分界线、界限、范围、边界
a line determining the limits of an area
义项编号 13903079-n边境、边缘
the boundary line or the area immediately inside the boundary
义项编号 13903387-n周界线、周边、外围
the outside boundary or surface of something
义项编号 13903576-n边沿、边缘、阈值
a region marking a boundary
义项编号 13903738-n上界
同一义项的词语：上界
(mathematics) a number equal to or greater than any other number in a given set
义项编号 13903855-n下界
同一义项的词语：下界
(mathematics) a number equal to or less than any other number in a given set
义项编号 13904011-n斜、斜 斜线、斜线
a line or cut across a fabric that is not at right angles to a side of the fabric
义项编号 13904164-n对角线
同一义项的词语：对角线
(geometry) a straight line connecting any two vertices of a polygon that are not adjacent
义项编号 13904325-n下降
同一义项的词语：下降
a depression in an otherwise level surface; "there was a dip in the road"
义项编号 13904506-n杯状
同一义项的词语：杯状
any cup-shaped concavity; "bees filled the waxen cups with honey"; "he wore a jock strap with a metal cup"; "the cup of her bra"
义项编号 13904665-n凹痕
同一义项的词语：凹痕
a depression scratched or carved into a surface
义项编号 13904843-n切迹
同一义项的词语：切迹
(anatomy) a notch or small hollow
义项编号 13905121-nV字形切口
同一义项的词语：V字形切口
a V-shaped indentation; "mandibular notch"
义项编号 13905275-n刻痕
同一义项的词语：刻痕
a slight surface cut (especially a notch that is made to keep a tally)
义项编号 13905405-n下垂
同一义项的词语：下垂
a shape that sags; "there was a sag in the chair seat"
义项编号 13905572-n皱、皱纹、皱褶
a slight depression in the smoothness of a surface; "his face has many lines"; "ironing gets rid of most wrinkles"
义项编号 13905792-n眼角皱纹
同一义项的词语：眼角皱纹
a wrinkle in the skin at the outer corner of your eyes
义项编号 13906345-n纹样
同一义项的词语：纹样
the lines that form patterns on the skin (especially on the fingertips and the palms of the hands and the soles of the feet)
义项编号 13906484-n皱眉
同一义项的词语：皱眉
a facial wrinkle associated with frowning
义项编号 13906669-n生命线
同一义项的词语：生命线
a crease on the palm; its length is said by palmists to indicate how long you will live
义项编号 13906767-n生命线
同一义项的词语：生命线
a crease on the palm; palmists say it indicates your emotional nature
义项编号 13906936-n生命线
同一义项的词语：生命线
a crease on the palm; palmists say it indicates how successful you will be
义项编号 13907104-n缝隙、裂口、裂纹、裂缝、裂隙
a long narrow depression in a surface
义项编号 13907272-n折痕、折褶、皱、皱痕、皱褶、褶痕
an angular or rounded shape made by folding; "a fold in the napkin"; "a crease in his trousers"; "a plication on her blouse"; "a flexure of the colon"; "a bend of his elbow"
义项编号 13907415-n皱纹、皱褶、襞
an irregular fold in an otherwise even surface (as in cloth)
义项编号 13907847-n凹入处、凹口、凹痕、压痕
a concave cut into a surface or edge (as in a coastline)
义项编号 13908021-n凹陷、裂缝、隙口
a split or indentation in something (as the palate or chin)
义项编号 13908201-n条痕、条纹、线条
any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue
义项编号 13908348-n旋轮线
同一义项的词语：旋轮线
a line generated by a point on one figure rolling around a second figure
义项编号 13908580-n圆滚线、摆线、旋轮线、轮转线
a line generated by a point on a circle rolling along a straight line
义项编号 13908777-n轮转线
同一义项的词语：轮转线
a cycloid generated by a point inside the rolling circle
义项编号 13908954-n椭圆线
同一义项的词语：椭圆线
a cycloid generated by a point outside the rolling circle
义项编号 13909071-n正弦曲线
同一义项的词语：正弦曲线
the curve of y=sin x
义项编号 13909190-n本轮
同一义项的词语：本轮
a circle that rolls around (inside or outside) another circle; generates an epicycloid or hypocycloid
义项编号 13909296-n外摆线
同一义项的词语：外摆线
a line generated by a point on a circle rolling around another circle
义项编号 13909488-n心形曲线
同一义项的词语：心形曲线
an epicycloid in which the rolling circle equals the fixed circle
义项编号 13909632-n次摆圆
同一义项的词语：次摆圆
a line generated by a point on a circle that rolls around inside another circle
义项编号 13909752-n无定形
同一义项的词语：无定形
an amorphous or indefinite shape; "a shapeless mass"
义项编号 13909889-n小斑点
同一义项的词语：小斑点
an indistinct shapeless form
义项编号 13910019-n真空、空、空处、空隙
an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he'll be ruling in a vacuum"
义项编号 13910116-n空地、空间
an empty area (usually bounded in some way between things); "the architect left space in front of the building"; "they stopped at an open space in the jungle"; "the space between his teeth"
义项编号 13910384-n洼地
同一义项的词语：洼地
a cavity or space in something; "hunger had caused the hollows in their cheeks"
义项编号 13910895-n叉点、结、结点、节点
a connecting point at which several lines come together
义项编号 13911045-n关节、接合、接连处、结合、结合点、连接
the shape or manner in which things come together and a connection is made
义项编号 13911151-n空地
同一义项的词语：空地
an unoccupied space
义项编号 13911429-n中空、凹处、孔、孔穴、洞、空腔
space that is surrounded by something
义项编号 13911517-n圆点、点
a very small circular shape; "a row of points"; "draw lines between the dots"
义项编号 13911872-n小孔、微孔
any tiny hole admitting passage of a liquid (fluid or gas)
义项编号 13912115-n树形图
同一义项的词语：树形图
a figure that branches from a single root; "genealogical tree"
义项编号 13912260-n进化分枝图
同一义项的词语：进化分枝图
a tree diagram used to illustrate phylogenetic relationships
义项编号 13912424-n家谱
同一义项的词语：家谱
a tree diagram showing a reconstruction of the transmission of manuscripts of a literary work
义项编号 13912540-n刺
同一义项的词语：刺
any sharply pointed projection
义项编号 13912839-n压缩
同一义项的词语：压缩
a narrowing that reduces the flow through a channel
义项编号 13912992-n刻面、小面
a smooth surface (as of a bone or cut gemstone)
义项编号 13913164-n向量、矢量
a straight line segment whose length is magnitude and whose orientation in space is direction
义项编号 13913263-n射线
同一义项的词语：射线
(mathematics) a straight line extending from a point
义项编号 13913427-n特征、造型
the distinctive form in which a thing is made; "pottery of this cast was found throughout the region"
义项编号 13913566-n分叉、分支
a part of a forked or branching shape; "he broke off one of the branches"
义项编号 13913849-n肱、臂状突起、臂状部分
(biology) a branching or armlike part of an animal
义项编号 13914141-n方块、立方体
a three-dimensional shape with six square or rectangular sides
义项编号 13914608-n棱锥、棱锥体、角锥、角锥体、角锥形、角锥状物
同一义项的词语：棱锥、棱锥体、角锥、角锥体、角锥形、角锥状物
a polyhedron having a polygonal base and triangular sides with a common vertex
义项编号 13914837-n