freefall

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. A state of motion affected by no acceleration or force other than that of gravity. countable,uncountable
    — SAC has a bomber study currently in progress to see how many freefalls, how many SRAM, how many ALCM's they need to fill out the force.
  2. A state of motion but allowing for the presence of incidental air resistance not caused intentionally by devices such parachutes or wings. countable,uncountable
    — I only had four months left on the team and wanted to log as many freefalls as possible, and I was closing in on my 750th jump.
  3. A rapid, uncontrolled decline or worsening. broadly,countable,figuratively,uncountable
    — As civil war continues in Iraq, the U.S. president's approval ratings are in freefall.
动词 v.
  1. To drop in a state of freefall. intransitive
    — A base jumper attempts to freefall for as long as possible before triggering the parachute.
  2. To decline or worsen rapidly and uncontrollably. broadly,figuratively,intransitive

词形变化

freefalls plural free fall alternative free-fall alternative freefalls present,singular,third-person freefalling participle,present freefell past freefallen participle,past free fall alternative free-fall alternative

词汇关系

衍生词
accelerated freefall acceleration of freefall freefall style free-fall time in freefall progressive freefall universality of freefall freefaller freefalling

词源

词源 1
From free + fall.
词源 2
From free + fall.
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