-
- To save this word, you'll need to log in.
galactose
noun
ga·lac·tose
gə-ˈlak-ˌtōs
-ˌtōz
: a sugar C6H12O6 less soluble and less sweet than glucose
Examples of galactose in a Sentence
Recent Examples on the Web
Monosaccharides include glucose, fructose, and galactose.
—Jillian Kubala, Health, 16 Oct. 2024
Researchers believe people with this condition produce more IgA that is low in the sugar galactose.
—Mark Gurarie, Health, 30 Sep. 2024
During digestion, lactase produced in the lining of the small intestine splits lactose into smaller sugar molecules (known as glucose and galactose) for absorption.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 7 Mar. 2024
Lactose is a disaccharide, meaning it is composed of two types of simpler sugars, glucose and galactose, that are bound together.
—Max Bennett, Discover Magazine, 29 Jan. 2024
On Friday, the state lab ran its first screen of Garrett's blood, which showed 13 milligrams of galactose.
—jsonline.com, 29 Apr. 2022
Generally, lactose-free milk is made by adding the enzyme lactase to regular milk, which breaks down the milk sugar lactose into its two component sugars, glucose and galactose.
—Dr. Keith Roach, oregonlive, 1 Dec. 2021
Lactose is the carbohydrate component of milk – a disaccharide composed of D-glucose and D-galactose.
—Science & Food, Discover Magazine, 21 July 2015
This type of linkage makes the sialic acid and galactose stick straight up.
—Quanta Magazine, 25 Feb. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Word History
Etymology
borrowed from French, from Greek galakt-, gála "milk" + French -ose -ose entry 2; from the occurrence of the sugar in milk — more at galaxy
First Known Use
1862, in the meaning defined above
Dictionary Entries Near galactose
Cite this Entry
“Galactose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galactose. Accessed 3 Dec. 2024.
Kids Definition
galactose
noun
ga·lac·tose
gə-ˈlak-ˌtōs
: a sugar that is less easily dissolved and is less sweet than glucose
Medical Definition
galactose
noun
ga·lac·tose
gə-ˈlak-ˌtōs, -ˌtōz
: an optically active sugar C6H12O6 that is less soluble and less sweet than glucose and is known in dextrorotatory, levorotatory, and racemic forms
More from Merriam-Webster on galactose
Nglish: Translation of galactose for Spanish Speakers
Britannica.com: Encyclopedia article about galactose
Love words? Need even more definitions?
Merriam-Webster unabridged
Share