velocity

名词 n.
中文释义
英 /vəˈlɒsəti/    美 /vəˈlɑsəti/

英文释义

名词 n.
  1. A vector quantity that denotes the rate of change of position with respect to time, combining speed with a directional component. countable,uncountable
    — A car racing in a circle may retain the same speed while continually changing its velocity.
  2. A rapidity of motion. countable,uncountable
    — The train was travelling at a slower velocity than usual.
  3. The rate of occurrence. countable,uncountable
  4. The number of times that an average unit of currency is spent during a specific period of time. countable,uncountable
  5. The value corresponding to how hard a key is struck on a MIDI controller or keyboard. countable,uncountable

词形变化

velocities plural

词汇关系

近义词
speed
下位词
angular velocity escape velocity exhaust velocity exit velocity first cosmic velocity group velocity high-velocity hypervelocity information velocity instantaneous velocity intermediate-velocity low-velocity muzzle velocity orbital velocity peculiar velocity phase velocity Planck velocity radial velocity second cosmic velocity space velocity supervelocity tangential velocity terminal velocity third cosmic velocity ultravelocity
衍生词
constant velocity four-velocity root mean square velocity velocimeter velocity curve velocity dispersion velocity potential

词源

From Middle French vélocité, from Latin vēlōcitās (“speed”), from vēlōx (“fast”), thus a doublet of veloce.
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