noun · verb · 8 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:/dɹɒs/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/dɹɔs/
Canada, US, cot-caught-merger:/dɹɑs/
Australian, New-Zealand:/dɹɔs/
Australian, New-Zealand:/dɹɒs/
rhymes with -ɒs
rhymes with -ɔːs
CMU ARPABET:D R AO1 S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Waste or impure matter.
Residue that forms as a scum on the surface of molten metal from oxidation.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: slag, scoria
Antonyms: none provided
2
noun
Meaning 2
Waste or impure matter.
The impurities in metal.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
Waste or impure matter.
A waste product from working with metal.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: slag
Antonyms: none provided
4
noun
Meaning 4
Worthless or trivial matter.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively, uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: junk, rubbish
Antonyms: none provided
5
noun
Meaning 5
Residual raw opium left in an opium pipe which can be recycled for further sale or use.
Definition source: English Wiktionary via Wiktextract
Usage: slang, uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To remove dross from.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
noun
Meaning 7
worthless or dangerous material that should be removed
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, scoria
Antonyms: none provided
Broader terms: scum
Narrower terms: basic slag
History
Etymology
From Middle English drosse, dros, from Old English drōs, from Proto-Germanic *drōhs (“dregs, sediment”). Also compare Old English drōsna, drōsne (“a ground, sediment, lees, dregs, dirt, ear wax”), from Proto-Germanic *drōhsnǭ, *drōhsnō (“dregs, sediment”), derived from *drōhs. Alternatively, this may be from *dragjō + *-snō (“yeast, sediment”; compare *dragjō (“yeast”)), as if from *drēcg + -sn. Ultimately from Proto-Indo-European *dhrā́ks (“sediment, yeast”). Cognate with Scots dros, drose, drosse (“small particles, fragments, dross”), Middle Dutch droes (“dregs”), Dutch droesem (“dregs”), German Drusen (“lees, dregs”), Latin fracēs (“grounds or dregs of oil”). Related also to drast, dregs.
Across languages
Translations
68 source translations are retained for this English entry.
Bulgarian:
отпадъци
(otpadǎci)
— Waste or impure matter
Czech:
odpad
— Waste or impure matter
Czech:
škvár
— Waste or impure matter
Czech:
brak
— Waste or impure matter
Czech:
šmejd
— Waste or impure matter
German:
Müll
— Waste or impure matter
German:
Schrott
— Waste or impure matter
Greek:
περιττό
(perittó)
— Waste or impure matter
Persian:
تفاله
(tofâle)
— Waste or impure matter
Persian:
لوث
(lows)
— Waste or impure matter
Polish:
nieczystości
— Waste or impure matter
Polish:
odpady
— Waste or impure matter
Russian:
отбро́сы
(otbrósy)
— Waste or impure matter
Serbo-Croatian:
о̏тпа̄д
— Waste or impure matter
Serbo-Croatian:
о̀тпадак
— Waste or impure matter
Serbo-Croatian:
ȍtpād
— Waste or impure matter
Serbo-Croatian:
òtpadak
— Waste or impure matter
Swedish:
slagg
— Waste or impure matter
Ottoman Turkish:
بوق
(bok)
— Waste or impure matter
Bulgarian:
шлака
(šlaka)
— Residue that forms on the surface of molten metal
Czech:
struska
— Residue that forms on the surface of molten metal
French:
crasse
— Residue that forms on the surface of molten metal
French:
écume
— Residue that forms on the surface of molten metal
French:
scorie
— Residue that forms on the surface of molten metal
Galician:
escoura
— Residue that forms on the surface of molten metal
German:
Schlacke
— Residue that forms on the surface of molten metal
German:
Krätze
— Residue that forms on the surface of molten metal
Ancient Greek:
σκωρία
(skōría)
— Residue that forms on the surface of molten metal
Italian:
scoria
— Residue that forms on the surface of molten metal
Kazakh:
қақ
(qaq)
— Residue that forms on the surface of molten metal
Kazakh:
қабыршақ
(qabyrşaq)
— Residue that forms on the surface of molten metal
Latin:
spodium
— Residue that forms on the surface of molten metal
Polish:
opiłki
— Residue that forms on the surface of molten metal
Portuguese:
escória
— Residue that forms on the surface of molten metal
Romanian:
zgură
— Residue that forms on the surface of molten metal
Russian:
ока́лина
(okálina)
— Residue that forms on the surface of molten metal
Russian:
шлак
(šlak)
— Residue that forms on the surface of molten metal
Serbo-Croatian:
troska
— Residue that forms on the surface of molten metal
Serbo-Croatian:
šljaka
— Residue that forms on the surface of molten metal
Spanish:
escoria
— Residue that forms on the surface of molten metal
Swedish:
slagg
— Residue that forms on the surface of molten metal
Tagalog:
taing-bakal
— Residue that forms on the surface of molten metal
Ottoman Turkish:
بوق
(bok)
— Residue that forms on the surface of molten metal
Bulgarian:
примес
(primes)
— The impurities in metal
Polish:
nieczystości
— The impurities in metal
Russian:
при́месь
(prímesʹ)
— The impurities in metal
Serbo-Croatian:
при̑мјеса
— The impurities in metal
Serbo-Croatian:
нечисто̀ћа
— The impurities in metal
Serbo-Croatian:
prȋmjesa
— The impurities in metal
Serbo-Croatian:
nečistòća
— The impurities in metal
Ottoman Turkish:
بوق
(bok)
— The impurities in metal
Czech:
struska
— A waste product from working with metal
Czech:
škvára
— A waste product from working with metal
Galician:
escoura
— A waste product from working with metal
Latin:
scoria
— A waste product from working with metal
Polish:
zgar
— A waste product from working with metal
Romanian:
zgură
— A waste product from working with metal
Russian:
шлак
(šlak)
— A waste product from working with metal
Serbo-Croatian:
шља̏ка
— A waste product from working with metal
Serbo-Croatian:
šljȁka
— A waste product from working with metal
Spanish:
escoria
— A waste product from working with metal
Swedish:
slagg
— A waste product from working with metal
Ottoman Turkish:
بوق
(bok)
— A waste product from working with metal
German:
Abschaum
— Worthless or trivial matter
German:
Schund
— Worthless or trivial matter
Polish:
odpad
— Worthless or trivial matter
Serbo-Croatian:
о̀тпадак
— Worthless or trivial matter
Serbo-Croatian:
òtpadak
— Worthless or trivial matter