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radius    音标拼音: [r'ediəs]
n. 半径,半径范围;辐,辐射线

半径,半径范围;辐,辐射线

radius
半径

radius
半径

radius
n 1: the length of a line segment between the center and
circumference of a circle or sphere [synonym: {radius}, {r}]
2: a straight line from the center to the perimeter of a circle
(or from the center to the surface of a sphere)
3: a circular region whose area is indicated by the length of
its radius; "they located it within a radius of 2 miles"
4: the outer and slightly shorter of the two bones of the human
forearm
5: support consisting of a radial member of a wheel joining the
hub to the rim [synonym: {spoke}, {wheel spoke}, {radius}]

Radius \Ra"di*us\ (r[=a]"d[i^]*[u^]s), n.; pl. L. {Radii}
(r[=a]"d[i^]*[imac]); E. {Radiuses}
(r[=a]"d[i^]*[u^]s*[e^]z). [L., a staff, rod, spoke of a
wheel, radius, ray. See {Ray} a divergent line.]
1. (Geom.) A right line drawn or extending from the center of
a circle to the periphery; the semidiameter of a circle or
sphere.
[1913 Webster]

2. (Anat.) The preaxial bone of the forearm, or brachium,
corresponding to the tibia of the hind limb. See Illust.
of {Artiodactyla}.
[1913 Webster]

Note: The radius is on the same side of the limb as the
thumb, or pollex, and in man it is so articulated that
its lower end is capable of partial rotation about the
ulna.
[1913 Webster]

3. (Bot.) A ray, or outer floret, of the capitulum of such
plants as the sunflower and the daisy. See {Ray}, 2.
[1913 Webster]

4. pl. (Zool.)
(a) The barbs of a perfect feather.
(b) Radiating organs, or color-markings, of the radiates.
[1913 Webster]

5. The movable limb of a sextant or other angular instrument.
--Knight.
[1913 Webster]

{Radius bar} (Mach.), a bar pivoted at one end, about which
it swings, and having its other end attached to a piece
which it causes to move in a circular arc.

{Radius of curvature}. See under {Curvature}.
[1913 Webster]

143 Moby Thesaurus words for "radius":
O, air line, ambit, amplitude, annular muscle, annulus, approach,
area, areola, asymptote, aureole, axis, beeline, bigness, body,
bore, bottleneck, breadth, bulk, caliber, carry, chaplet, chord,
circle, circuit, circumference, circus, closed circle,
collision course, compass, concentralization, concentration,
concourse, concurrence, confluence, conflux, congress, convergence,
converging, corona, coronet, coverage, crossing, crown, cycle,
depth, diadem, diagonal, diameter, diapason, diffusion, dimension,
dimensions, direct line, directrix, discus, disk, dispersion, edge,
emanation, eternal return, expanse, expansion, extension, extent,
fairy ring, focalization, focus, funnel, gamut, garland, gauge,
girth, glory, great-circle course, greatness, halo, height, hub,
largeness, lasso, length, logical circle, loop, looplet,
magic circle, magnitude, mass, measure, measurement, meeting,
mutual approach, narrowing gap, noose, normal, orbit,
perpendicular, proportion, proportions, purview, radiance,
radiation, radius vector, range, ray, reach, register, right line,
ring, rondelle, round, roundel, saucer, scale, scattering, scope,
secant, segment, semidiameter, shortcut, side, size, spectrum,
sphincter, spoke, spokes, spread, straight, straight course,
straight line, straight stretch, straightaway, streamline, stretch,
sweep, tangent, transversal, vector, vicious circle, volume, wheel,
width, wreath

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  • 什么是RADIUS（Remote Authentication Dial In User Service，远程用户拨号认证）？RADIUS是 . . .
    RADIUS（Remote Authentication Dial In User Service，远程用户拨号认证）协议是一种分布式的、客户端 服务器结构的信息交互协议，能保护网络不受未授权访问的干扰，常应用在既要求较高安全性、又允许远程用户访问的各种网络环境中。
  • radius（英语单词）_百度百科
    radius是源自拉丁语的英语多义词，16世纪引入英语。 作为名词，指圆或球体的半径、前臂桡骨及生物辐射对称轴；动词表示边缘弧形处理。 复数形式为radii。 几何学中半径用于计算周长面积，并衍生曲率半径、转弯半径等工程学术语。 解剖学特指前臂外侧桡骨。
  • RADIUS中文 (简体)翻译：剑桥词典 - Cambridge Dictionary
    The station, shopping centre and school lie within a one-mile radius of the house 车站、购物中心和学校都在距这所房子1英里的范围之内。
  • radius是什么意思_radius的翻译_音标_读音_用法_例句_爱词霸在线词典
    爱词霸权威在线词典,为您提供radius的中文意思,radius的用法讲解,radius的读音,radius的同义词,radius的反义词,radius的例句等英语服务。
  • RADIUS - Wikipedia
    Protocol components RADIUS is an AAA (authentication, authorization, and accounting) protocol that manages network access RADIUS uses two types of packets to manage the full AAA process: Access-Request, which manages authentication and authorization; and Accounting-Request, which manages accounting
  • 什么是 RADIUS 认证协议？ - 知乎
    RADIUS 全称为远程身份验证拨入用户服务（Remote Authentication Dial-In User Service），是一种用于验证和授权用户访问的网络协议，访问范围囊括了远程和本地。 此外，RADIUS 也用于网络基础设施的访问。 自推出…
  • RADIUS Definition Meaning - Merriam-Webster
    The meaning of RADIUS is a line segment extending from the center of a circle or sphere to the circumference or bounding surface How to use radius in a sentence
  • RADIUS 释义 | 柯林斯英语词典 - Collins Online Dictionary
    The radius around a particular point is the distance from it in any direction Nigel has searched for work in a ten-mile radius around his home 2 可数名词 The radius of a circle is the distance from its centre to its outside edge
  • Radius of a Circle - Formula | What is Radius? | Radius Formula - Cuemath
    The radius of a circle is defined as a line segment that joins the center to the boundary of a circle The length of the radius remains the same from the center to any point on the circumference of the circle
  • Radius - Math. net
    The radius (plural radii) of a circle is any line segment that has one endpoint on the center of the circle and the other endpoint on the circle's circumference





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