Standard Lemma guide

scoria

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˈskɔː.ɹi.ə/
  • General-American: /ˈskoɹ.i.ə/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ɔːɹiə

1

noun

Meaning 1

The slag or dross that remains after the smelting of metal from an ore.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: engineering, metallurgy, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cinder

Antonyms: none provided

2

noun

Meaning 2

Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: geography, geology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cinders

Antonyms: none provided

3

noun

Meaning 3

the scum formed by oxidation at the surface of molten metals

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: slag, dross

Antonyms: none provided

Broader terms: scum

Narrower terms: basic slag

History

Etymology

Inherited from Middle English, from Latin scōria, from Ancient Greek σκωρία (skōría), from σκῶρ (skôr, “dung”).

Across languages

Translations

7 source translations are retained for this English entry.

  • Polish: żużel — slag from smelting
  • Polish: szlag — slag from smelting
  • Tamil: கீச்சு (kīccu) — slag from smelting
  • Chinese Mandarin: 火山渣 (huǒshānzhā) — volcanic rock
  • Māori: rahoto — volcanic rock
  • Māori: rangitoto — volcanic rock
  • Polish: scoria — volcanic rock
Real reading context

scoria in complete knowledge articles