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RADIUS
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Irregular inflected form: radii
I. (noun)
Sense 1
Meaning:
Support consisting of a radial member of a wheel joining the hub to the rim
Synonyms:
Classified under:
Nouns denoting man-made objects
Hypernyms ("radius" is a kind of...):
support (any device that bears the weight of another thing)
Holonyms ("radius" is a part of...):
bicycle wheel (the wheel of a bicycle)
cartwheel (a wheel that has wooden spokes and a metal rim)
wagon wheel (a wheel of a wagon)
Sense 2
Meaning:
The length of a line segment between the center and circumference of a circle or sphere
Synonyms:
r; radius
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("radius" is a kind of...):
length (the linear extent in space from one end to the other; the longest dimension of something that is fixed in place)
Hyponyms (each of the following is a kind of "radius"):
semidiameter (the apparent radius of a celestial body when viewed as a disc from the earth)
radius of curvature (the radius of the circle of curvature; the absolute value of the reciprocal of the curvature of a curve at a given point)
Holonyms ("radius" is a part of...):
diam; diameter (the length of a straight line passing through the center of a circle and connecting two points on the circumference)
Sense 3
Meaning:
The outer and slightly shorter of the two bones of the human forearm
Classified under:
Hypernyms ("radius" is a kind of...):
arm bone (a bone in the arm)
Holonyms ("radius" is a part of...):
forearm (the part of the superior limb between the elbow and the wrist)
Derivation:
radial (relating to or near the radius)
Sense 4
Meaning:
A circular region whose area is indicated by the length of its radius
Example:
they located it within a radius of 2 miles
Classified under:
Nouns denoting spatial position
Hypernyms ("radius" is a kind of...):
part; region (the extended spatial location of something)
Sense 5
Meaning:
A straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
Classified under:
Nouns denoting two and three dimensional shapes
Hypernyms ("radius" is a kind of...):
straight line (a line traced by a point traveling in a constant direction; a line of zero curvature)
Derivation:
radial (relating to or moving along or having the direction of a radius)
II. (verb)
Sense 1
Present simple (first person singular and plural, second person singular and plural, third person plural) of the verb radius
Context examples:
Of the 206 bones in your body, 3 of them are in your arm; the humerus, radius and ulna.
(Arm Injuries and Disorders, NIH)
An imaginary sphere of infinite radius, on which the stars appear to be placed.
(Celestial sphere, NOAA Paleoclimate Glossary)
Any of the small bones of the wrist joint, located between the radius and the ulna and the metacarpus.
(Carpal Bone, NCI Thesaurus)
These technologies share the concept of scanning an extremely sharp tip (3-50 nm radius of curvature) across the object surface.
(Atomic Resolution Microscopy, NCI Thesaurus)
Its mass is 1.2 times that of Jupiter, and its radius is about 1.9 times Jupiter's — making it puffier.
(Hubble Detects Exoplanet with Glowing Water Atmosphere, NASA)
It was then very dark, and the scattered lamps made the darkness greater when we were once outside their individual radius.
(Dracula, by Bram Stoker)
A joint involving the humerus, radius and ulna bones.
(Elbow Joint, NCI Thesaurus/CDISC)
You may take it from me that naval warfare becomes impossible within the radius of a Bruce-Partington’s operation.
(His Last Bow, by Sir Arthur Conan Doyle)
Since K2-288Bb's radius places it in this gap, it may provide a case study of planetary evolution within this size range.
(Citizen Scientists Find New World with NASA Telescope, NASA)
I have also examined every stable and out-house in Tavistock, and for a radius of ten miles.
(The Memoirs of Sherlock Holmes, by Sir Arthur Conan Doyle)
