et

helikiirus

1 substantive

EKI Combined Dictionary 2026

Last modified 21.05.2026

Meanings

helilaine levimise kiirus keskkonnas

Translations

Good to know

Helikiiruseks Maal arvestatakse 1225 km/h.

Terminological databases

Meteoroloogia ja klimatoloogia terminibaas

ID 522396 Last modified 07.06.2023
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Domain atmosphere - climatology - meteorology - magnetosphere
sound velocity
sonic speed
скорость звука
  • helilaine levimise kiirus elastses keskkonnas, sõltuvalt temperatuurist ja keskkonna omadustest
    Good to know
    • IVM kood S2080
sound velocity
sonic speed
скорость звука

Metroloogia terminibaas

ID 574849 Last modified 31.12.2023
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Domain Standardisation - Metrology
helikiirus preferred
heli kiirus
helilevikiirus
speed of sound preferred
sonic speed
sound velocity
  • kiirus, millega heli konkreetsetes tingimustes kindlaksmääratud keskkonnas levib
  • speed at which sound travels in a given medium under specified conditions
  • distance travelled per unit of time by a sound wave as it propagates through an elastic medium
helikiirus preferred
Usage examples
  • Helikiirusel on nõrk sõltuvus sagedusest ja rõhust tavalises õhus, kaldudes veidi kõrvale ideaalsest käitumisest, mistõttu kõnekeeles viitab heli kiirus helilainete kiirusele õhus.
Good to know
  • Üldiselt helikiirus on aga aineti erinev: tavaliselt liigub heli kõige aeglasemalt gaasides, kiiremini vedelikes ja kõige kiiremini tahketes ainetes, näiteks on helikiirus merepinna kõrgusel rahvusvahelises standardatmosfääris 1 215 km/h.
heli kiirus
helilevikiirus
häälekiirus
speed of sound preferred
Usage examples
  • The speed of sond has a weak dependence on frequency and pressure in ordinary air, deviating slightly from ideal behavior, as a result of which in colloquial speech, speed of sound refers to the speed of sound waves in air.
Good to know
  • However, the speed of sound varies from substance to substance: typically, sound travels most slowly in gases, faster in liquids, and fastest in solids.
sonic speed
sound velocity
acoustical velocity variant

Militerm | riigikaitseterminite andmebaas

ID 527750 Last modified 02.10.2023
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Domain Air Forces -> General
helikiirus preferred
speed of sound preferred
sonic speed admitted
vitesse du son preferred
  • kiirus, millega heli konkreetsetes tingimustes kindlaksmääratud keskkonnas levib
  • the speed at which sound travels in a given medium under specified conditions
Good to know
  • Helikiirus merepinna kõrgusel on standardatmosfääris 658 kt ehk 1215 km/h ehk 1108 ft/s.
Good to know
  • The speed of sound at sea level in the International Standard Atmosphere is 1108 ft/second, 658 knots, 1215 km/hour.
Related
helikiirus preferred
speed of sound preferred
sonic speed admitted
vitesse du son preferred

Word forms

Inflection Type 11

helikiirus helikiirused
helikiiruse helikiiruste
helikiirust helikiirusi

Inflection Type 9

helikiirus helikiirused
helikiiruse helikiiruste
helikiirust helikiiruseid

Etymology not available

Related words

  • Second component of the compound:
  • First component of the compound:

Phrases and phrasal verbs not available

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Compounds with search word as first component not available

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