ātrums

From ātrs (“fast, quick”) +‎ -ums.

ātrums m (1st declension)

1. (physics) speed, velocity (property of motion, defined by the distance covered in a unit amount of time)

   skrējiena ātrums ― race speed

   skaņas ātrums ― speed of sound

   gaismas ātrums ― speed of light

   kosmiskais ātrums ― escape (lit. cosmic) velocity

   ātruma rādītājs, spidometrs — speed indicator, speedometer

   uzņemt ātrums ― to pick up, to increase speed

   zibens ātruma bezdelīgas šaujas no mājām uz lauku ― with lightning speed the swallows flew (lit. shot) from home to the field

2. (of processes, activities, events) speed, rapidity, rate

   elpošanas ātrums ― breathing rate

   pulsācijas ātrums ― pulse, pulsation rate

   zivju augšanas ātrums ― fish growth rate

   uztveres ātrums ― perceptual speed

   viss norisinājās neiedomājamā ātrumā ― everything happened at an incredible speed

3. (in locative) in a hurry, hurriedly

   ātrumā aizmirst ko pateikt ― to forget what to say in a hurry

   ātrumā kļūdīties ― to make a mistake in a hurry, hurriedly

4. (cars, automobiles) gear

   braukt ar trešo ātrumu ― to ride in, with the third gear

   pārslēgt ātrumu ― to shift gears

   šoferis pārslēdza ātrumu, lai mašīna straujāk ripotu uz priekšu ― the driver shifted gears, so that the car would ride forward faster

• ašums
• straujums
• žiglums

• kosmiskais ātrums