et

räni

1 substantive

EKI Combined Dictionary 2026

Last modified 25.03.2026

Meanings

1
looduses ühendeina esinev halli värvi ja metallilise läikega kristalne aine, omadustelt mittemetall, keemiline element järjenumbriga 14
Synonyms
  • Si symbol

Translations

Good to know
et
Külma käes ei tõmbu räni kokku, nagu enamik aineid, vaid selle ruumala hoopis suureneb.
1.1
ränidioksiidist koosnev muguljas orgaaniline aine, kvartsi teisend
Synonyms

Translations

Usage examples
  • Kõva kui räni.
2
okaspuude puidurike, mille korral tihenenud aastarõngastega puit on muutunud kõvaks, kuid rabedaks
Synonyms

Translations

Terminological databases

EKI terminibaas Esterm

ID 732288 Last modified 15.10.2015
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Domain inorganic chemistry
räni
Si
silicon
Si
pii
  • keemiline element, mittemetall; hallikas, kõva, habras, metalli läikega kristalne aine, sulamistemperatuur 1414 ºC, tihedus 2,3 Mg/m3
  • a metalloid element belonging to group 14 (formerly IVB) of the periodic table
räni
Si symbol
silicon
Good to know
  • Silicon makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen.
  • Highly purified silicon, doped (infused) with such elements as boron, phosphorus, and arsenic, is the basic material used in computer chips, transistors, silicon diodes, liquid crystal displays, and various other electronic and switching devices. ... Silicon of lesser purity is used in metallurgy as a reducing agent and as an alloying element in steel, aluminum, brass, and bronze.
  • Properties: at.no. 14; r.a.m. 28.086; r.d. 2.33; m.p. 1,410°C (2,570°F); b.p. 2,355°C (4,271°F); most common isotope Si28 (98.21%).
Si symbol
silicium
pii

Koolisõnastikud 2005–2010

ID 600118 Last modified 25.10.2022
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Domain chemistry
  • keemiline element järjenumbriga Z = 14; väheaktiivne mittemetall

Materjalitehnika terminibaas

ID 675043 Last modified 25.03.2026
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Domain Chemistryiron foundry & steel foundry - metals & alloysmaterials science
  • mittemetall, sümbol Si, aatomnr. 14, aatommass 28,08, sulamistemperatuur 1420 oC, suhteline tihedus 2,42
  • looduses ühendeina esinev halli värvi ja metallilise läikega kristalne aine, omadustelt mittemetall, keemiline element järjenumbriga 14
  • a non-metallic element, symbol Si, atomic no. 14, relative atomic mass 28.086, melting point 1420 oC, relative density 2.42
räni
silicon

Metalliaabits

ID 437494 Last modified 25.10.2022
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  • Siliitsium

Word forms

Inflection Type 17

räni ränid
räni ränide
räni ränisid

Etymology

laensõna
  • räni
    • крень 'ränikivi, tulekivi' sõna кремень murdevariant

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