Meanings
nounlactose (countable and uncountable, plural lactoses)
plural lactoses
- countableuncountablebiochemistryThe disaccharide sugar of milk and dairy products, C₁₂H₂₂O₁₁, a product of glucose and galactose used as a food and in medicinal compounds.
Synonyms: lactobiose, milk sugar
Synonyms & antonyms
nounThe disaccharide sugar of milk and dairy products, C₁₂H₂₂O₁₁, a product of glucose and galactose used as a food and in medicinal compounds.
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More synonyms by meaning
nouna sugar comprising one glucose molecule linked to a galactose molecule; occurs only in milk
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Broader
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Translations
Arabic لَاكْتُوز
- لَاكْتُوز (lāktūz)disaccharide sugar of milk and dairy products
Basque laktosa
- laktosadisaccharide sugar of milk and dairy products
Bulgarian лактоза
- лактоза (laktoza)disaccharide sugar of milk and dairy products
Catalan lactosa
- lactosadisaccharide sugar of milk and dairy products
Chinese Cantonese 乳糖
- 乳糖 (jyu⁵ tong⁴)disaccharide sugar of milk and dairy products
Chinese Mandarin 乳糖
- 乳糖 (rǔtáng)disaccharide sugar of milk and dairy products
Czech laktóza
- laktózadisaccharide sugar of milk and dairy products
Danish laktose, mælkesukker
- laktosedisaccharide sugar of milk and dairy products
- mælkesukkerdisaccharide sugar of milk and dairy products
Dutch lactose, melksuiker
- lactosedisaccharide sugar of milk and dairy products
- melksuikerdisaccharide sugar of milk and dairy products
Esperanto laktozo, laktosukero
- laktozodisaccharide sugar of milk and dairy products
- laktosukerodisaccharide sugar of milk and dairy products
Estonian laktoos, piimasuhkur
- laktoosdisaccharide sugar of milk and dairy products
- piimasuhkurdisaccharide sugar of milk and dairy products
Finnish laktoosi, maitosokeri
- laktoosidisaccharide sugar of milk and dairy products
- maitosokeridisaccharide sugar of milk and dairy products
French lactose
- lactosedisaccharide sugar of milk and dairy products
German Laktose, Lactose
- Laktosedisaccharide sugar of milk and dairy products
- Lactosedisaccharide sugar of milk and dairy products
- Milchzuckerdisaccharide sugar of milk and dairy products
Greek λακτόζη
- λακτόζη (laktózi)disaccharide sugar of milk and dairy products
Hebrew לקטוז
- לקטוז (laktóz)disaccharide sugar of milk and dairy products
Hindi दुग्धधु
- दुग्धधु (dugdhadhu)disaccharide sugar of milk and dairy products
Hungarian laktóz, tejcukor
- laktózdisaccharide sugar of milk and dairy products
- tejcukordisaccharide sugar of milk and dairy products
Icelandic laktósi, mjólkursykur
- laktósidisaccharide sugar of milk and dairy products
- mjólkursykurdisaccharide sugar of milk and dairy products
Indonesian laktosa
- laktosadisaccharide sugar of milk and dairy products
Irish lachtós
- lachtósdisaccharide sugar of milk and dairy products
Italian lattosio
- lattosiodisaccharide sugar of milk and dairy products
Japanese 乳糖, ラクトース
- 乳糖 (nyūtō)disaccharide sugar of milk and dairy products
- ラクトース (rakutōsu)disaccharide sugar of milk and dairy products
Korean 락토스, 유당
- 락토스 (raktoseu)disaccharide sugar of milk and dairy products
- 유당 (yudang)disaccharide sugar of milk and dairy products
- 젖당 (jeotdang)disaccharide sugar of milk and dairy products
Latin lactosum
- lactosumdisaccharide sugar of milk and dairy products
Latvian laktoze
- laktozedisaccharide sugar of milk and dairy products
Lithuanian laktozė
- laktozėdisaccharide sugar of milk and dairy products
Malay laktosa
- laktosadisaccharide sugar of milk and dairy products
Māori huka waiū, reihuka
- huka waiūdisaccharide sugar of milk and dairy products
- reihukadisaccharide sugar of milk and dairy products
Norwegian Bokmål laktose, melkesukker
- laktosedisaccharide sugar of milk and dairy products
- melkesukkerdisaccharide sugar of milk and dairy products
Persian لاکتوز
- لاکتوز (lâktoz)disaccharide sugar of milk and dairy products
Polish laktoza
- laktozadisaccharide sugar of milk and dairy products
Portuguese lactose
- lactosedisaccharide sugar of milk and dairy products
Romanian lactoză
- lactozădisaccharide sugar of milk and dairy products
Russian лакто́за
- лакто́за (laktóza)disaccharide sugar of milk and dairy products
Slovak laktóza
- laktózadisaccharide sugar of milk and dairy products
Spanish lactosa
- lactosadisaccharide sugar of milk and dairy products
Swahili laktosi
- laktosidisaccharide sugar of milk and dairy products
Swedish laktos, mjölksocker
- laktosdisaccharide sugar of milk and dairy products
- mjölksockerdisaccharide sugar of milk and dairy products
Tagalog laktosa
- laktosadisaccharide sugar of milk and dairy products
Thai แล็กโทส
- แล็กโทสdisaccharide sugar of milk and dairy products
Turkish laktoz, süt şekeri
- laktozdisaccharide sugar of milk and dairy products
- süt şekeridisaccharide sugar of milk and dairy products
Vietnamese đường sữa, lactoza
- đường sữadisaccharide sugar of milk and dairy products
- lactozadisaccharide sugar of milk and dairy products
Welsh lactos
- lactosdisaccharide sugar of milk and dairy products
Rhymes & wordplay
Anagrams
Cite this entry
APA
lactose. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/lactose
MLA
“lactose.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lactose. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “lactose,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/lactose.
Source: lactose on Wiktionary, CC BY-SA 4.0.