угольный

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Russian

Etymology 1

у́голь (úgolʹ, coal) +‎ -ный (-nyj)

Pronunciation

Adjective

у́гольный (úgolʹnyj)

  1. (relational) coal
    у́гольный пластúgolʹnyj plastcoal seam, coal bed
    у́гольная промы́шленностьúgolʹnaja promýšlennostʹcoal industry
  2. (relational) carbon; carbonic
    у́гольный фильтрúgolʹnyj filʹtrcarbon filter
    у́гольная кислота́úgolʹnaja kislotácarbonic acid
  3. very dark, coal-black, jet-black
    у́гольные во́лосыúgolʹnyje vólosyjet-black hair, coal-black hair
Declension

Etymology 2

у́гол (úgol, corner) +‎ -ный (-nyj)

Pronunciation

Adjective

уго́льный (ugólʹnyj)

  1. (relational) corner
    Synonym: углово́й (uglovój)
    уго́льный домugólʹnyj domcorner house
Usage notes

This word is rare by itself. It is more commonly found in combinations such as треуго́льный (treugólʹnyj, triangular, three-corner), краеуго́льный (krajeugólʹnyj, main, most important; originally cornerstone). The normal word used in its place in углово́й (uglovój) (compare углово́й уда́р (uglovój udár, corner kick)).

Declension