saltation

• 名词，指跳跃或跃动，常用于地质学中描述颗粒被风或水跳跃式搬运，或遗传学中描述突发的进化变化。

A noun referring to a leaping or jumping movement, often used in geology to describe the transport of particles by wind or water, or in genetics to describe a sudden evolutionary change.

1. Geological particle movementC1formalscientific

   The leaping or bouncing transport of sand or soil particles by wind or water across an uneven surface.

   跃移

   • Saltation is a key process in the formation of sand dunes.
   • The wind-driven saltation of sand grains shapes the desert landscape.
   • Geologists study saltation to understand sediment transport in rivers.

   同义词bouncingleaping

2. Genetic mutationC2formalscientific

   A sudden, drastic change in the genetic material of an organism that significantly alters its appearance or characteristics.

   突变

   • Saltation in genetics can lead to the rapid emergence of new species.
   • The scientist observed a saltation that changed the flower's color entirely.
   • This type of saltation is rare but can have major evolutionary effects.

   同义词mutation

3. Abrupt changeC2formal

   A sudden, discontinuous transition from one state or condition to another.

   突变

   • The company experienced a saltation in its growth after the merger.
   • There was a saltation in the climate, shifting from cold to warm abruptly.
   • The artist's style underwent a saltation, moving from realism to abstraction.

   同义词bounddiscontinuityjumpleapquantum leapshift

   反义词continuitystability

4. Dance or rhythmic movementC1formalart

   A series of rhythmical steps and movements performed in time to music, often involving leaping or jumping.

   跳跃舞

   • The ballet featured a beautiful saltation by the lead dancer.
   • Saltation is a fundamental element in many traditional folk dances.
   • The choreographer incorporated saltation into the modern dance piece.

   同义词boundcaperdancedancinggambolhopleapprancespring

5. Upward or forward leapC1formal

   A light, self-propelled movement upwards or forwards, such as a jump or bound.

   跳跃

   • The frog's saltation carried it across the pond in a single bound.
   • Athletes practice saltation to improve their jumping ability.
   • The dancer's saltation was so graceful it seemed effortless.

   同义词boundhopjumpleapspringvault