radius

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

radius UK US [ˈreɪ.di.əs] [plural radii ] noun countable [ radii ]
 
DISTANCE

1. (the length of) a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface
• The radius of this wheel is 30 cm.
• This wheel has a radius of 30 cm.
Thesaurus⁺: ↑Parts of geometrical shapes
2. a distance
• The station, shopping centre and school lie within a one-mile radius of the house.
Thesaurus⁺: ↑Measurements in general
 
BONE
3. specialized the thicker of the two bones in the lower arm
See picture
Thesaurus⁺: ↑The arm

• Từ đồng nghĩa / Synonyms:
  spoke, wheel spoke, r