Phrase guide

pig iron

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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈpɪɡ aɪən/
  • General-American: /ˈpɪɡ ˌaɪ(ə)ɹn/
  • General-American: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A brittle, impure form of iron produced by smelting iron ore which is often shaped into blocks; it is unsuitable for working but suitable for casting, and so is commonly used as an industrial raw material; (countable) a sample of such iron.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: crude iron

Antonyms: none provided

Broader terms: iron, metal

2

noun

Meaning 2

An iron plate which is hung between a piece of meat and the fire used to cook it to prevent the meat from burning if the fire is too hot.

Definition source: English Wiktionary via Wiktextract

Usage: countable, obsolete, usually

Topics: cooking, food, lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pig plate

Antonyms: none provided

3

noun

Meaning 3

crude iron tapped from a blast furnace

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: iron, Fe, atomic number 26

Narrower terms: basic iron, cinder pig, mine pig, spiegeleisen, spiegel, spiegel iron

History

Etymology

From pig (“animal of the family Suidae, especially the domesticated animal Sus domesticus; oblong block of cast metal (iron or lead)”) + iron. It appears that in early use sow was used to refer to larger blocks of smelted metal and pig smaller ones. From the 17th century, the words were adapted to newer methods of iron smelting, with pig used to describe blocks formed from molten iron served from the central channel (runner) of a pig bed which were said to resemble a litter of piglets nursing from a sow.

Across languages

Translations

63 source translations are retained for this English entry.

  • Albanian: gizë — impure form of iron produced by smelting iron ore
  • Arabic: حديد غفل — impure form of iron produced by smelting iron ore
  • Basque: arrabio — impure form of iron produced by smelting iron ore
  • Bengali: কাঁচা লোহা (kãca lōha) — impure form of iron produced by smelting iron ore
  • Bulgarian: чугун на слитъци (čugun na slitǎci) — impure form of iron produced by smelting iron ore
  • Catalan: lingot d'alt forn — impure form of iron produced by smelting iron ore
  • Chinese Mandarin: 生鐵 /生铁 (shēngtiě) — impure form of iron produced by smelting iron ore
  • Chinese Mandarin: 銑鐵 /铣铁 (xiǎntiě) — impure form of iron produced by smelting iron ore
  • Chinese Mandarin: 鑄鐵 /铸铁 (zhùtiě) — impure form of iron produced by smelting iron ore
  • Min Nan Chinese: 鑄鉎仔 /铸𰽫仔 (chù-sin-á) — impure form of iron produced by smelting iron ore
  • Min Nan Chinese: 鉎仔 /𰽫仔 (sen-á, sin-á) — impure form of iron produced by smelting iron ore
  • Czech: surové železo — impure form of iron produced by smelting iron ore
  • Danish: råjern — impure form of iron produced by smelting iron ore
  • Esperanto: krudfero — impure form of iron produced by smelting iron ore
  • Finnish: harkkorauta — impure form of iron produced by smelting iron ore
  • Finnish: takkirauta — impure form of iron produced by smelting iron ore
  • French: fonte brute — impure form of iron produced by smelting iron ore
  • Galician: gusa — impure form of iron produced by smelting iron ore
  • German: Roheisen — impure form of iron produced by smelting iron ore
  • Greek: αργός σίδηρος (argós sídiros) — impure form of iron produced by smelting iron ore
  • Hebrew: ברזל גולמי — impure form of iron produced by smelting iron ore
  • Hindi: कच्चा लोहा (kaccā lohā) — impure form of iron produced by smelting iron ore
  • Hungarian: disznó vas — impure form of iron produced by smelting iron ore
  • Hungarian: nyersvas — impure form of iron produced by smelting iron ore
  • Indonesian: besi gubal — impure form of iron produced by smelting iron ore
  • Indonesian: besi kasar — impure form of iron produced by smelting iron ore
  • Irish: muciarann — impure form of iron produced by smelting iron ore
  • Italian: ghisa grezza — impure form of iron produced by smelting iron ore
  • Japanese: 銑鉄 (sentetsu) — impure form of iron produced by smelting iron ore
  • Japanese: 銑 (zuku) — impure form of iron produced by smelting iron ore
  • Korean: 선철 (seoncheol) — impure form of iron produced by smelting iron ore
  • Macedonian: су́рово же́лезо (súrovo žélezo) — impure form of iron produced by smelting iron ore
  • Malay: besi jongkong — impure form of iron produced by smelting iron ore
  • Norwegian Bokmål: råjern — impure form of iron produced by smelting iron ore
  • Norwegian Bokmål: rujern — impure form of iron produced by smelting iron ore
  • Norwegian Nynorsk: råjern — impure form of iron produced by smelting iron ore
  • Norwegian Nynorsk: råjarn — impure form of iron produced by smelting iron ore
  • Norwegian Nynorsk: rujern — impure form of iron produced by smelting iron ore
  • Norwegian Nynorsk: rujarn — impure form of iron produced by smelting iron ore
  • Persian: آهن خام — impure form of iron produced by smelting iron ore
  • Polish: surówka — impure form of iron produced by smelting iron ore
  • Portuguese: ferro-gusa — impure form of iron produced by smelting iron ore
  • Portuguese: gusa — impure form of iron produced by smelting iron ore
  • Romanian: fontă brută — impure form of iron produced by smelting iron ore
  • Russian: чу́шковый чугу́н (čúškovyj čugún) — impure form of iron produced by smelting iron ore
  • Russian: переде́льный чугу́н (peredélʹnyj čugún) — impure form of iron produced by smelting iron ore
  • Serbo-Croatian: сѝрово жѐљезо — impure form of iron produced by smelting iron ore
  • Serbo-Croatian: sìrovo žèljezo — impure form of iron produced by smelting iron ore
  • Sinhalese: අමු යකඩ (amu yakaḍa) — impure form of iron produced by smelting iron ore
  • Slovak: surové železo — impure form of iron produced by smelting iron ore
  • Slovene: grodelj — impure form of iron produced by smelting iron ore
  • Spanish: arrabio — impure form of iron produced by smelting iron ore
  • Spanish: hierro colado — impure form of iron produced by smelting iron ore
  • Swedish: tackjärn — impure form of iron produced by smelting iron ore
  • Tagalog: ilik-bakal — impure form of iron produced by smelting iron ore
  • Turkish: pik demir — impure form of iron produced by smelting iron ore
  • Tuvan: шой (şoy) — impure form of iron produced by smelting iron ore
  • Ukrainian: переро́бний чаву́н (pereróbnyj čavún) — impure form of iron produced by smelting iron ore
  • Ukrainian: сире́ залі́зо (syré zalízo) — impure form of iron produced by smelting iron ore
  • Urdu: کَچّا لوہا (kaccā lohā) — impure form of iron produced by smelting iron ore
  • Vietnamese: gang thỏi — impure form of iron produced by smelting iron ore
  • Welsh: haearn crai — impure form of iron produced by smelting iron ore
  • Welsh: haearn hwch — impure form of iron produced by smelting iron ore