| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024ra•di•al /ˈreɪdiəl/USA pronunciation adj. - Mathematicsarranged or having parts arranged like lines coming out of the center of a circle.
- Mathematicsgoing from the center outward or from the circumference inward along a line:radial motion.
n. [countable] - a radial section, part, or structure.
- Automotiveradial tire.
ra•di•al•ly, adv. WordReference Random House Unabridged Dictionary of American English © 2024ra•di•al (rā′dē əl),USA pronunciation adj. - Mathematicsarranged like radii or rays.
- Mechanical Engineeringhaving spokes, bars, lines, etc., arranged like radii, as a machine.
- Mathematicsmade in the direction of a radius;
going from the center outward or from the circumference inward along a radius:a radial cut. - Zoologypertaining to structures that radiate from a central point, as the arms of a starfish.
- Mathematicsof, like, or pertaining to a radius or a ray.
- [Mach.]
- Mechanical Engineeringhaving pistons moving inward and outward from a central point or shaft:a radial engine; a radial pump.
- Mechanical Engineeringnoting a bearing designed primarily to take thrusts radial to the center of rotation.
- Anatomyof, pertaining to, or situated near the radius.
- Mathematicsacting along or in the direction of the radius of a circle:radial motion; radial velocity.
n. - a radial section or construction.
- AutomotiveSee radial tire.
- Medieval Latin radiālis, equivalent. to Latin radi(us) beam, ray (see radius) + -ālis -al1
- 1560–70
Collins Concise English Dictionary © HarperCollins Publishers:: radial /ˈreɪdɪəl/ adj - (of lines, bars, beams of light, etc) emanating from a common central point; arranged like the radii of a circle
- of, like, or relating to a radius or ray
- of or relating to the radius or forearm
- (of velocity) in a direction along the line of sight of a celestial object and measured by means of the red shift (or blue shift) of the spectral lines of the object
n - a radial part or section
Etymology: 16th Century: from Medieval Latin radiālis from radiusˈradially adv |